The Friend - Bill Murray Exclusive Interview
The Friend
Shadow Force - Kerry Washington Exclusive Interview
Shadow Force
Superman - Official Teaser Trailer
Superman
The Smashing Machine - Dwayne Johnson at UFC Hall of Fame
The Smashing Machine
Lilo and Stitch - Spaceship Escape Clip
Lilo & Stitch
EDEN - Official Poster
Eden
Black Bag - Cate Blanchett Exclusive Interview
Black Bag
Murderbot Season 1 - David Dastmalchian and Alexander Skarsgård Scene
Murderbot
Murderbot - Now Streaming Clip
Murderbot
She Rides Shotgun - Official Teaser Poster
She Rides Shotgun
Elio - Freeze Frame Clip
Elio
The Running Man - Official Poster
The Running Man
Squid Game: Season 3 - Final Round Teaser Clip
Squid Game
Murderbot Season 1 - Alexander Skarsgård with a Weapon
Murderbot
Ironheart - Official Trailer
Ironheart
Heads of State - John Cena at Red Carpet Premiere
Heads of State
Think of a Number

Think of a Number Series 4: Episode Guide & Ratings

Series 4 Episodes

1. Reproduction

September 15th, 198230 min

The first of six programmes with Johnny Ball This week Johnny finds out about reproduction, discovering where your heart is and what your voice looks like. Also a machine that looks like us, but doesn't think like us and next generation robots that don't look like us, but think like us. Meanwhile - get around to generating an answer to this one - how many grooves are there on the average long-playing record ?

2. What does exactly mean exactly ?

September 22nd, 198230 min

Johnny finds out how to measure a metre, what keeps a marching soldier in line when he puts his best foot forward and how a laser gets the measure when spying on a locked room. Meanwhile - how many times can you take accurately three from 333 ?

3. Musical Numbers

September 29th, 198230 min

This week Johnny looks at a few musical numbers - discovering that time can change the National Anthem but still rule the waves. He also finds the key to play a violin, with no strings attached - what a fiddle!

4. Box Clever

October 6th, 198230 min

Johnny discovers the secrets of Doctor Who's Tardis, a box that looks like one but isn't and a machine that makes boxes quicker than you can. Also there's a disappearing box, a multiplying box and a box that's bigger on the inside than it is on the outside. Meanwhile - box clever with this. Five balls in a box -can you give them all to five friends so one remains in the box ?

5. Dangerous Curves

October 13th, 198230 min

Find out how you can draw hyperbolas, parabolas and about the illusion that something is there when it isn't. So this week watch out for things that go with a swing, and for curves there's no place like cone.

6. Gambling

October 20th, 198230 min

Find out if a fruit machine is fair and how skittles are at the fair. Also see some of the latest electronic games including some that talk backl Meanwhile, see if you're game for this one: line up ten balls in a box so that there are an equal number along each side.

All Seasons

Series 5

Series 5

Jan 4, 1984
Series 4

Series 4

Sep 15, 1982
Series 3

Series 3

Sep 10, 1980
Series 2

Series 2

Sep 12, 1979
Series 1

Series 1

Apr 12, 1978
Specials

Specials

Apr 2, 1977