Before the introduction of colour TV in the UK, the invention was previewed on a topical BBC science show, Tomorrows World. At the end of the show to give the impression of what colour TV might look like (remember Im viewing on a black & white TV set) they displayed the closing titles using a noise pattern to give the optical illusion of colour. For years until my parents got a real colour TV I expected to be able to see full colour TV pictures on the old black & white TV.
A childhood belief about tv

others believed things like this
- I used to believe that before colour TV the world was black and white....— Dougie
- I used to believe that the whole world was in black and white before colour TV was invented...— Robsa
- I used to believe that the sun was an oversized colour changing M&M.Anon
- I thought that if you wore the colour red, you would go yo hell. — Tone
- i used to think that coloured people had the same colour skeletonAnon
- when i was young i always thought that traffic lights were big lolly pops that changed colour— rudiger2