Video summary
The video features the third semi-finals of K-Check Season 4, where four contestants—Ren, Paul, Brian, and Eric—compete to advance to the final four. Ren is a geography student interested in disaster studies, while Paul studies electrical engineering; both enjoy hobbies like anime and music. Brian, an industrial engineering student, loves sports and history, whereas Eric, a 37-year-old gamer and trivia enthusiast, is returning to finish his UP Open University studies. They are guided by a panel of experts including Assistant Professor Sophia Gillermo, retired quiz master Ramon Lorenzo, and Professor Emeritus Cosina Natividad. The competition begins with Round One, where correct answers earn 10 points, testing the contestants on diverse topics ranging from pop culture and history to science and mathematics.
In the subsequent rounds, the stakes increase significantly as correct answers become worth 20 points in Round Two and 30 points in the Ultimate Round, with penalties for incorrect responses. The questions cover a wide array of subjects, including BTS concert details, traditional Japanese theater like Kabuki, Philippine history figures such as Macario Sakay and Indira Gandhi, scientific concepts like sedimentation and neurotransmitters, and mathematical problems involving geometry and probability. Throughout these intense rounds, the contestants demonstrate their knowledge in fields from art and literature to astronomy and biology, with some answers requiring specific historical context or complex calculations.
The scoring dynamics shift dramatically as the competition progresses, with Brian and Eric initially tying for the lead before Ren pulls ahead in the Ultimate Round. Despite a narrow margin between the top contenders, the final question on replacement level fertility proves decisive, securing Brian's victory with a total score of 135 points. This win earns him a spot among the grand finalists alongside Ren and Eric, while Paul finishes in fourth place. The episode concludes with congratulations to the winners and anticipation for the Friday finals, highlighting the intellectual challenge and camaraderie inherent in the K-Check quiz format.
Read the full video transcript
We're putting that power to the test
once more. Welcome to the semifinals
here on
>> K [music] Check.
[music]
Hello everyone. Attorney Gabby
Conception Jules Gillang and welcome to
K.
>> It's day three of [music] our semifinals
and our search for Friday's final four
continues.
>> [music]
[music]
>> Ren is a student from the [music]
department of geography. He loves
playing puzzle games, singing karaoke
with friends and walking around the
campus. His interests lie in
geographical [music] insights on
disaster studies
and science communication [music] and
also in addressing the education crisis.
Paul [music] is a UP dean student
studying electrical engineering. His
hobbies include watching anime,
scrolling through [music] Tik Tok, and
listening to different genres of music.
S Brian [music] po is an industrial
engineering student at UP Dean. He loves
listening to music and watching
historical films and shows. He also
enjoys playing sports [music] like
volleyball and badminton and is an avid
fan of the NBA. Particularly, he's a fan
of Luca Donic
of the Los Angeles [music]
Lakers.
Last but not least, Eric is a Young at
heart [music] gamer, a bread winner,
quiz show lover, and trivia enthusiast
who at 37 has decided [music] to
continue and finish his studies in PUP
Open University. He loves reading books,
listening to music, and playing online
games like Dota 2. These four will
[music] be competing under the watchful
eyes of today's panel of experts. Una,
[music] we have UP Dean Department of
Arts Studies Chair, Assistant Professor
Sophia Gillermo. Next, we [music] have
retired math teacher, Mensa member,
former TV quiz champion, and Kek's
[music] very own quiz master Rammon
Lorenzo. And finally, we have Professor
Emmeritus Cosina Natividad [music]
of the UP Population Institute of the
College of Social Sciences and
Philosophy, UP Dean. At contestants, on
to round one. Each [music] correct
answer in this round is worth 10 points.
Get ready to buzz in
is to get that early lead.
>> Let's begin.
[music]
>> Question number one. Which female singer
released the 2024 single To the Moon a
decade after the release of All About
That Pace?
Yes, Brian.
>> Megan Trainer. Megan Trainer released
All About That Pace, which led to her
winning a Grammy award for best new
artist. [music]
Kch C check.
Question number two, who is the British
chef who rose to fame with his first
Brian
>> Gordon Ramsay.
>> Gordon Ramsay is incorrect. He rose to
fame with his first BBC series in 1999
and earned the nickname The Naked Chef.
Jamie Oliver is the naked naked chef.
Question number three. Which Filipino
reality competition series premiered in
2022
which featured winners Precious Paula
Nicole? Yes, Ren.
>> Drag Race Philippines.
>> Drag Race Philippines featured winners
Precious Paula Nicole, Captivating Cat
Cat, and Maxi. The answer is correct.
Kch check
question number four. What fraction in
lowest terms is equivalent to 20% of
50%? Brian
>> 110th
>> one10enth is the correct answer. Kch
check.
Question number five. In Jonathan
Swift's book Guliver's Travels, what is
the name of the island nation inhabited?
Yes, Eric.
>> Lilyut.
>> Lilyut is the name of the island nation
inhabited by tiny people about 6 in
tall. The answer is correct. K check.
Question number six. Proclaiming himself
president of the Tagalog Republic. Which
revolutionary figure resisted US
colonization until his capture in 1906?
>> Yes, Ren.
>> Emilio Agonaldo.
>> Emilio Agenaldo is incorrect.
>> Yes, Paul.
>> Andres Bonafasio.
>> Andres Bonifaso is also incorrect. Yes,
Brian.
>> Gregorio Delpelar.
>> Gregorio delar is also incorrect.
>> Yes, Eric.
>> Macario Sakai. Macario Sakai is the
correct answer. Kch check.
Question number seven. Who made history
in 2021 as the first female vice
president of the United States rents?
>> Camala Harris.
>> Camala Harris is the correct answer. Kch
check. Question number eight. In what
country were more than 1,000 flights
canled during the 2025
Frankfurt airport strike? Paul,
>> France. France is incorrect. Yes, Ren.
>> Germany.
>> Frankfurt airport is in Germany. The
answer is correct. K check.
>> Question number nine. What is the
popular name of a Greekborn painter who
established his career in Spain and
created the works the burial of the
count of orgas and view of Toledo? Yes,
Ren.
>> Salvador Dali.
>> Salvador Delali is incorrect.
The Greekborn painter with a very
Spanish sounding name is El Greco.
Question number 10. What term refers to
the settling of the solid particles
through a liquid like the building up of
layers of sand and silt in lakes and
rivers? Rents
>> siltation.
>> Siltation is incorrect. Paul
>> sedimentation.
>> Sedimentation is the correct answer. K
check. Question number 11. Which girl
group recorded Gabriella as their Yes,
Brian.
>> Cat's Eye.
>> Cat's Eye recorded Gabriella as their
second single in 2025 before embarking
on their major tour. Cat's Eye is the
correct answer. [music] Kch check.
Question number 12. And the last
question for this round. What is the
shared common name of the 4,800year-old
bristle cone pine tree in California and
is also the name of the oldest man
mentioned in the Old Testament?
>> Yes, Paul.
>> Noah.
>> Noah is incorrect. Yes, Eric.
>> Methuselah.
>> Methuselah is the correct answer. Kch
check. And that's it for our first
round.
Salamat attorney for that round. Let's
do a scores recap. Tied at first place
Ren, Brian, and Eric with 30 points
each, followed by Paul with 10 points.
Semifinals.
[music]
So, how does it feel
and
[laughter]
biggest competitor
Paula, how did you prepare for today?
Preparation for a quiz show like Kche.
>> Uh, I watched them semi-finals, grand
finals last season. So to prepare
myself, what kind of questions?
So you feel adequate preparation.
So
[laughter]
Ren and Paul
with Brian and Erica round two.
Okay. Check.
>> [music]
>> Welcome back everyone is some points
recap.
[music]
Tides Rance Brian and Eric with 30
points each and of course Paul with 10
points.
Kica
Brian Eric Brian
reality show question for today.
Miss
Daily Rounds.
Yes. Thanks, Brian. Erical
and that performance earned him the
muchdeserved wildcard spot for today.
So, because you're more mature than your
fellow competitors, do you think you
have the edge or advantage, Eric?
>> Um,
related
[laughter]
is always a good thing actually
audience for today. No. So,
Brian, Eric, Ren, and Paul. And now
it's time for round two.
Strategy involved contestants.
Correct answers are worth 20 points
each, but you lose 10 points if you
answer incorrectly.
>> Let's begin.
Question number one, which BTS member
headlined the April 2025 concert at Moa
Arena where he performed songs from his
solo career, including On the Street?
Eric
>> Suga.
>> Suga is rock.
>> J-H Hope.
>> J Hope is correct. Okay, check.
Question number two. Originating in the
1600s in Japan, which form of theater
has its actors often wearing face paint
called kumadori.
Eric
>> Kabuki.
>> Kabuki is correct. Okay, check.
Question number three. who became the
president of the Philippines at just 29
years old after rising to prominence as
a general?
>> Ren,
>> Emilio Agenaldo.
>> Emilio Agaldo is correct. Okay, check.
Question number four. In what sport did
the Philippines win its first ever Asian
Winter Games gold medal in 2025? Paul,
>> figure skating. Figure skating is wrong.
Anyone can answer.
The correct answer is curling.
Question number five. Which actress
known for her platinum blonde hair and
signature beauty mark starred in movies
Some Like It Hot and Gentlemen Prefer
Blondes?
Eric,
>> Marilyn Monroe.
>> Marilyn Monroe is correct. Okay, check.
Question number six. Which city in
Illinois has the third largest
metropolitan area in the United States?
The correct answer is Chicago.
Question number seven.
Which Filipino American Grandmaster
clinched the 2025 Sinkfield Cup by
winning a dramatic three-way playoff?
>> Brian
>> Wesley Saw.
>> Wesley Saw is correct. Okay, check.
Question number eight. Who became the
first female prime minister of India
serving from 1966 to 1977?
Rens Indira Gandhi.
>> Let me proceed. And again from 1980
until her assassination in 1984, Indira
[music] Gandhi is correct. Okay, check.
Question number nine in math. A spinner
has 10 equal sectors numbered 1 to 10.
What percent are the chances of the
spinner pointing to a multiple of four?
Paul,
>> 40%.
>> 40% is wrong, Eric.
>> 20%.
>> 20% is correct. Okay, check.
Question number 10. Discovered in 1789
by German chemist [music]
Martin Hinrich Clapro. Which element was
named after a newly discovered planet at
that time?
>> Eric.
>> Mercury.
>> Mercury is wrong. Friends,
>> plutonium.
>> Plutonium is wrong. Ryan,
>> uranium.
>> Uranium is correct. Okay, check.
Question number 11. Which Grammyinning
ac capella group recently? Paul.
Pentatonix.
>> Let me proceed. Recently launched their
2025 Christmas in the City Tour across
the US. Pentatonix is correct. Okay,
check. Last question for this round
number 12. Which football player for the
Kansas City Chief? Eric.
>> Travis Kelce.
>> Then we proceed. Made headlines in
August 2025 when he got engaged to pop
star superstar Taylor Swift. You said
Travis Kelce. That is correct. Okay,
check. And that's it for round number
two.
And after that round, for that round, we
have Brian and Eric tied for first
[music] place with 90 points. For both
of them, Ren with 60 points, Paul with
10.
Up next,
ultimate round
check.
>> [music]
>> Welcome back. Semifinals n K check
points recap. Tied at first place
[music] s Brian and Eric with 90 points
each followed by Ren with 60 and Paul
with 10 in the [music] lead man s Brian
at Eric chance
as we go into our ultimate
round panel of experts.
Correct answers are worth 30 points each
at my 15 point deduction for wrong
answers. So contestants remember for
this multiplechoice round we will accept
the [music] answer itself for the letter
and answer but not the letter only. And
at the end of this round
pane grand finalist Nicole good luck to
everyone.
>> Let's begin. Ultimate
[music]
round. First question from Prof. Sophie.
>> A street inside the cultural center of
the Philippines complex is named after
the writer considered to be the father
of Ilocano literature. A. Pedro Bukhan.
>> Rance. Pedro Bukane.
>> Um, let me finish. V. Carlos Bulosan,
C. F. Shail,
D. Leon CP Chai, E. Isabella de los
Reyes. Um, the epic bag is attributed to
A. Pedro Bukhan. Okay, check.
>> Thanks, Prof. Sophie. Sir Mon, your
question please.
>> Okay, so next question is in math
lang to in geometry. How many diagonals
does a decagon have?
A 81, B 42, C 35.
>> Friends,
>> 81.
>> 81 is not correct. D 84, E 70.
Using the formula d is equal to n * n
minus 3 / 2 that's 10. A decagon has 10
sides time 7 divided by 2 which is 35.
The correct answer is letter C.
>> Thanks Armon Prof Joy. Go ahead.
>> What is the main focus of psychology as
a social science? A laws and
regulations. B human behavior and mental
processes. C
>> Brian B. human behavior and mental
processes.
>> Okay, let me finish. C, markets and
trade. D, language and structure. E,
population genetics. And the answer is
B. Human behavior and mental processes.
Okay, check.
>> Thanks, RJ Joy. And now off to round
two.
>> Prof. Sophie, go ahead.
In successes deas is Filipinas published
in6009.
Antonio de morgga wrote
all are very careful of their blank
which from a very early age they file
and render even with stones and iron.
>> They Eric
>> fingernails malipo.
They dye them a black color which is
lasting and which preserves their blank
until they are very old. What is blank?
A eyebrows.
B fingernails.
C hair. D teeth. E toenails.
>> Friends teeth.
>> Yes. Actually, no. which only goes to
show how standards of beauty can change
over time because they black teeth. It
was beautiful. So the correct answer is
teeth. K check.
>> Okay. Thanks for that info, Prof.
Sophie. Sirmon, go ahead.
>> Recent events in bot. According to the
Chinese Academy of Agricultural Sciences
in their study in August 2025,
the modern potato evolved from which
plant 9 million years ago? Is it Agg, B
cabbage, C strawberry, D coconut, or E
tomato?
Sir.
[laughter]
Oh. The team of evolutionary biologist
revealed that the modern-day potato got
his start in the South American
mountains of the Andes from the tomato.
Tomato.
>> I see. Thanks, Herman. Profy.
Which term describes the tendency to
recall the first and last items in a
list better than the middle ones? A
encoding specificity.
B serial position effect. C priming. D
chunking. E interference.
>> Rense.
>> Serial position effect.
Serial position effect is a
psychological phenomenon that describes
how the position of an item in a list
influences its recall. Okay, check.
>> Thanks, Profoy. We're done with the
first half. Attorney, go ahead.
>> Well, after that first half of our
ultimate pagalingan round, we have Ren
in first [music] place with 135 points,
followed by Brian with 120 points. And
in third place is Eric with 75 points
and Paul with 10 points.
>> Yes. Last half win.
>> So we have
180 points
contestants.
>> Correct. So
last half third round prof Sophie
>> Nashville artist Carlos Botm Francisco's
Filipino struggles through history
painted from 1964 to 1968
is a mural series composed of 10
canvases
each depicting a scene from Philippine
history. Which of the following was not
depicted in the murals?
A. The Bonafasio mural, also known as
Cry of Balintawak.
B. Blood Compact.
C. Edsa Revolution.
>> Brian.
>> C. Eda Revolution.
>> I'll just finish. D. First mass at
Masawa. E. Martyrdom of Fizal. Well, the
murals were finished in 1968
and Edsa took place in 1986. So C is
correct. K check.
>> Thanks Prof. Sophie Sirmon. Go ahead.
>> In mathematics,
if two legs of a right triangle are 9 in
and 12 in,
what is the length of the hypotenuse?
>> Paul,
>> 15 in.
>> 9 squared is 81. 12 squared is 144. Add
them up 225. The square root is 15. You
are correct. K check.
>> Thanks. Profan question
>> challenge. [laughter]
>> Prof. Go ahead.
>> Okay. What is the neurotransmitter
associated with feelings of pleasure,
motivation, and reward that is also
behind the feelings of eophoria we
normally experience during the early
stages of falling in love? Is it
estrogen?
>> Estrogen.
>> Let me finish. That is incorrect.
B. Epinephrine. C. Dopamine. D.
>> Paul.
>> Dopamine. Let me finish. D, serotonin,
E, cortisol. And the answer is dopamine.
K check. Dopamine is the pleasurable
sensation that you feel uh is is the
neurotransmitter that is responsible
for the feelings of euphoria you feel
when you are first falling in love. It's
also the same neurotransmitter that is
responsible for the feelings of euphoria
associated with the use of cocaine and
alcohol.
>> So when you are in love that's just
dopamine.
>> A
when you're in love it's like taking
cocaine. [laughter]
>> Thanks Ry. Okay so off to our last
round.
>> Yes. Before we go into our last round,
after that third round of questions, we
have Brian in the lead now with 150
points, followed by Ren with 120 points,
Eric with 75 and Paul with 70.
>> Okay, so last round me
>> 90 points.
>> 90 points. So 90 points meron.
>> Correct. Okay, last questions. Prof
Sophie, go ahead.
The triumph of science over death, also
known as Sienna. A statue depicting a
young nude woman with flowing hair
standing on a skull while bearing a
torch can be found in front of Fernando
Calderon Hall UP College of Medicine.
This in Manila. It is a large replica of
a clay sculpture by
A. Felix Resurrection Hidalgo, B.
Gillard Moto Tolentino
C. Jose Rizal D.
>> Rile Talentino Malipo
D. Juan Luna E. Napoleon Abuva
>> Eric
>> E. Napoleon Abuva
>> Malipo
>> Paul
>> A. Felix Resurrection Halgo Malipo
Brian
>> Juan Luna.
[laughter]
So he actually made the original clay
sculpture for his friend Ferdinand Bloom
and Treat. So the answer is Perisal.
>> Okay, last 60 points.
>> Yes,
>> Sermon. Go ahead.
>> Oh, this question is in aeronautics.
Which pilot of the spacecraft Freedom 7
became the second human in space in May
1961?
Is it A. Valentina Tereshova,
B. Yuri Gagarin, C. Alan Shepard, D. Jim
Lovel, E. John Glenn
>> Eric
>> John Glenn
>> John Glenn is not correct
>> Paul
>> see Alan Shepard
>> Alan Shepard was the pilot of freedom 7
before Shepherd came Yuri Gagarin the
first man in space and seven animals
including fruit flies mice monkeys
chimpanzees and dogs see Alan Shepherd
is correct okay Check.
>> Thanks, Herman. Okay, so here we go. Off
to our last question.
Attorney
Se Brian is in the lead with 135 points,
followed by Ren behind by 30 points.
105 points. Paul with 85, Eric with 45
points. And we're now down to our last
30 point question.
>> Prof. Joy, go ahead. Okay. Replacement
level fertility is the average number of
children per woman needed for a
population to place itself from one
generation to the next without
considering migration. What is the value
most often used as replacement level
fertility?
Is it A 1.5 children per woman? B two
children per woman rents
>> two children per woman. Okay, let me
finish. That answer is not correct. C.
2.1 children per woman. D three children
per woman. E 3.1 children per woman.
>> Eric
>> C 2.1 children per woman.
>> Okay. The answer is C 2.1 children per
woman. K check. It is not two because
some children die before reaching
reproductive age. So slightly more than
two must be born to ensure that two will
survive to reproduce.
And that's it for Kchek ultimate
pagaling. Congratulations to Brian, our
third grand finalist with [applause] a
score of 135 points. We'll see you again
on Friday when you compete with our
other grand finalists for the title of
Kche champion.
>> Thanks to Ren. For a while, we thought
we were going to have a tie on our
hands, but thank you to Rance, Paul, and
[music] Eric for joining us today. And
of course, to the members of our panel
of experts, Prof. Sophie, Sir Ramon,
Lorenzo, and Prof. Joy. A po attorney
Gabby Conception.
>> Thank you, Kandama, for my talk. A poor
Gillang. Please join us again tomorrow
for the last day of our semifinals here
on
>> King Check.
[music]
Heat. Heat.
[music]