Think of a Number
We checked 8 streaming services in India on 05 Jun 2026 at 01:27 IST
About
A light-hearted exploration of maths and science, presented by Johnny Ball.
Cast
Episodes
Series 1
Episode 1
Johnny Ball, with the help of a studio audience, will show some mind-stretching models, blistering ballistics, lightning calculations and some shocking ways to store your energy - and let it go.
Episode 2
This week Johnny discovers why hands are so handy, how to make sense of your senses, automate an automaton and how bionic a bionic man can be. Meanwhile - Think of a Number - How many times can you take 3 from 24 ?
Materials
This week Johnny looks at family trees, works out how to get rid of a boomerang, puts nylon in an endless spin and turns a fossil back into a dinosaur with the aid of an element that never forgets. Meanwhile - Think of a Number - a half is a third of it - what's the number ?
Water
Lots of giggles and quite a few gurgles as Johnny explores water from H to O. Meanwhile - Think of a Number. At a quick guess, which set of numbers has the larger total ?
The Shape of Wealth
This week Johnny discovers some dicey things about dice and a number over a thousand miles long; also something heavy about gold and cutting about diamonds. Meanwhile - Think of a Number. By using two minus and one plus signs make this all add up! 123456789 = 10
Episode 6
This time Johnny considers why the Earth is in a flat spin; talks about what makes tocks tick and how to gain on the swings and roundabouts. So meanwhile - Think of a Number - Divide 50 by a half and add three. What's the answer ?
Where does Think of a Number rank today?
Think of a Number is #10000 on the CineFlixo Daily Streaming Charts today.
- Highest: #10000
- Top 10: 0 days
- Top 100: 0 days
Watch Think of a Number Online Free — All Episodes in HD
Stream Think of a Number online free in HD on CineFlixo. A well-rated family and kids series originally produced in Inglés and released in 1978, it's earned a solid 7.7/10 from 3 viewers worldwide.
About Think of a Number
A light-hearted exploration of maths and science, presented by Johnny Ball. Across 5 seasons and 30 episodes, originally airing on BBC One.
Think of a Number Cast and Characters
The cast features Johnny Ball. Their performances are a major reason Think of a Number has built such a passionate audience.
Where to Watch Think of a Number Online
On CineFlixo you can watch Think of a Number free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.
▶ Watch Think of a Number NowWhy People Are Watching Think of a Number
There's a reason Think of a Number keeps showing up on "must-watch" lists. What makes it work is a tone and style that's hard to find elsewhere. If you enjoy Inglés storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about Think of a Number
Where can I watch Think of a Number online for free?
You can watch Think of a Number online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does Think of a Number have?
Think of a Number has 30 episodes across 5 seasons. All episodes are available to stream right here on CineFlixo.
Is Think of a Number good? What's the rating?
Think of a Number holds a 7.7/10 rating based on 3 reviews — well above average.
Who is in the cast of Think of a Number?
The main cast includes Johnny Ball.
Is Think of a Number available in Inglés?
Yes — Think of a Number was originally produced in Inglés and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was Think of a Number released?
Think of a Number first aired in 1978.
Do I need an account to watch Think of a Number on CineFlixo?
No. CineFlixo is free and you can watch Think of a Number without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Frequently Asked Questions
Where can I watch Think of a Number for free?
You can watch Think of a Number online for free on CineFlixo. All 30 episodes across 5 seasons are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does Think of a Number have?
Think of a Number currently has 5 seasons and a total of 30 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on CineFlixo and continue watching from where you left off.
What is Think of a Number about?
A light-hearted exploration of maths and science, presented by Johnny Ball. It belongs to the Family, Kids genres.
In which language is Think of a Number originally available?
Think of a Number was originally produced in English. On CineFlixo the show is available in its original English audio, which is the most authentic way to experience the dialogue, music, and performances. Check the player options on the watch page for available subtitle tracks.
When was Think of a Number first released?
Think of a Number first premiered on April 12, 1978 (1978). The series has since concluded its run.
All Seasons
Browse every season of Think of a Number — 5 seasons in total
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