Have you ever wondered what would happen if you could walk on the ceiling? Or fly like a superhero? Or if you ate nothing but burgers? Or if the Earth had 2 Suns? Well, in series 2 of 'Hey You What If', we're going to take another 26 ridiculous questions and answer them in our own unique way.
This is a bold, clever and mischievous factual series that plunges us into parallel worlds where anything can – and does – happen.
26 Eps.
Have you ever wondered what would happen if you could walk on the ceiling? Or fly like a superhero? Or if you ate nothing but burgers? Or if the Earth had 2 Suns? Well, in series 2 of 'Hey You What If', we're going to take another 26 ridiculous questions and answer them in our own unique way.
This is a bold, clever and mischievous factual series that plunges us into parallel worlds where anything can – and does – happen.
26 Eps.
Ends 14 Mar 2026
Eng
Chi, Eng
4K
New
E1
You built a mega-slide?
E1
You built a mega-slide?
New
Could you build a slide to the other side of the world? You'd need to start in space, use the slippiest slide ever an…
5mins
Ends 14 Mar 2026
New
E2
You walked through walls?
E2
You walked through walls?
New
Wouldn't it be cool to be able to walk through walls? From turning into a gas to quantum trickery, we discover why…
5mins
Ends 14 Mar 2026
New
E3
We got rid of bugs?
E3
We got rid of bugs?
New
Bugs might be annoying but if we got rid of them then we'd soon regret it - all our favourite foods would disappear…
5mins
Ends 14 Mar 2026
New
E4
You needed two of you?
E4
You needed two of you?
New
They say you can't be in two places at once but is that true? We try cloning, robot doubles and even 3D bioprinting…
5mins
Ends 14 Mar 2026
New
E5
You could stop global warming?
E5
You could stop global warming?
New
Imagine if we had a thermostat that could turn the world temperature down - could we fix global warming? But…
5mins
Ends 14 Mar 2026
New
E6
You lived on Venus?
E6
You lived on Venus?
New
Venus has acid rain, crushing pressure and is hotter than an oven so it might not sound like the ideal place to live…
5mins
Ends 14 Mar 2026
New
E7
You could shout round the world?
E7
You could shout round the world?
New
If you thought it was impossible to shout from one side of the world to the other then think again. There is a way...
5mins
Ends 14 Mar 2026
New
E8
You were invisible?
E8
You were invisible?
New
Have you ever wanted to be invisible? We try out everything from skin that changes colour to an invisiblity cloak to...
5mins
Ends 14 Mar 2026
New
E9
We had two suns?
E9
We had two suns?
New
We try adding another sun to our earth - and after frying and then freezing the earth we find a perfect combination…
5mins
Ends 14 Mar 2026
New
E10
Your mind could move things?
E10
Your mind could move things?
New
We imagine a world where it's possible to move things with your mind - just like in superhero films - but find that…
5mins
Ends 14 Mar 2026
New
E11
Animals were supersized?
E11
Animals were supersized?
New
We look at whether some animals can get gigantic and find out that if you're being chased by a giant snail or a humun…
5mins
Ends 14 Mar 2026
New
E12
You walked on the ceiling?
E12
You walked on the ceiling?
New
Wouldn't it be great if you could walk on the ceiling? We try using a gravity bending black hole and spinning the ear…
5mins
Ends 14 Mar 2026
New
E13
You were the last person on Earth?
E13
You were the last person on Earth?
New
If you were the last person on earth your manners would definitely get worse but on the plus side you'd be able to…
5mins
Ends 14 Mar 2026
New
E14
You built a giant sand castle?
E14
You built a giant sand castle?
New
Is it possible to build a sand castle the size of a real castle? We imagine how it could be done, using a pneumatic…
5mins
Ends 14 Mar 2026
New
E15
You shrunk the Earth?
E15
You shrunk the Earth?
New
Think it's too far to the shops? Why not shrink the earth? We try it and discover that you can jump higher and move...
5mins
Ends 14 Mar 2026
New
E16
Money grew on trees?
E16
Money grew on trees?
New
If you had a tree that could grow money would that make you rich? Even if you wait 20 years for your tree to grow…
5mins
Ends 14 Mar 2026
New
E17
You flew like a superhero?
E17
You flew like a superhero?
New
Flying like a superhero may sound like enormous fun, but there are some serious downsides that Hollywood doesn’t tell…
5mins
Ends 14 Mar 2026
New
E18
There were no colours?
E18
There were no colours?
New
Imagine removing all the colours one by one? It would change more than just how things look and after taking out just…
5mins
Ends 14 Mar 2026
New
E19
You only ate burgers?
E19
You only ate burgers?
New
If everyone in the world ate nothing but burgers, we'd run out of farm land and even if we went meat-free, we'd have...
5mins
Ends 14 Mar 2026
New
E20
You threw a ball round the world?
E20
You threw a ball round the world?
New
To throw a ball around the world you need to start out in space, throw it 10 times the speed of a bullet and make..
5mins
Ends 14 Mar 2026
New
E21
You built the tallest building on Earth?
E21
You built the tallest building on Earth?
New
We reveal how to build the ultimate in tall buildings by going to the Moon and taking inspiration from wedding cakes.
5mins
Ends 14 Mar 2026
New
E22
You had kangaroo legs?
E22
You had kangaroo legs?
New
To win a marathon, are you better off with the bouncing legs of a kangaroo, the giant legs of a T-Rex or sticking…
5mins
Ends 14 Mar 2026
New
E23
You were indestructible?
E23
You were indestructible?
New
We imagine becoming unbreakable by removing our bones, turning our skin to metal and finally by becoming completely…
5mins
Ends 14 Mar 2026
New
E24
You surfed without water?
E24
You surfed without water?
New
Sometimes, you want to go surfing but it's too far to the beach so we try surfing on land with the help of a…
5mins
Ends 14 Mar 2026
New
E25
Earth ran out of energy?
E25
Earth ran out of energy?
New
We try out a crazy idea from science fiction to build a giant sphere around the Sun and give us more energy than…
5mins
Ends 14 Mar 2026
New
E26
You could walk up walls?
E26
You could walk up walls?
New
Loads of animals can do it, so why can't we? We take inspiration from the natural world as we imagine a new kind of…
5mins
Ends 14 Mar 2026
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