Which three colours of light do TV screen pixels combine to make all the others?
AnswerRed, green and blue
Screens mix red, green and blue light in different strengths to produce the full range of colours.
Tech · Facts & stats
TV facts & stats
7 fact-checked facts about television, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What is the standard aspect ratio of widescreen HD television?
Answer16:9
Widescreen HD TV uses a 16:9 frame, about 1.78 times as wide as it is tall.
Going deeper
A 1080p HD picture is how many pixels wide?
Answer1920
A 1080p frame measures 1920 by 1080 pixels.
Most TV remote controls send signals using which kind of light?
AnswerInfrared
Typical remotes flash an infrared LED in coded pulses, invisible to our eyes but seen by the TV's sensor.
What was the standard aspect ratio of older, pre-widescreen television?
Answer4:3
Traditional standard-definition TV pictures were 4 units wide for every 3 units tall.
Expert level
Which American inventor conceived an all-electronic TV system as a teenager and built the image dissector tube?
AnswerPhilo Farnsworth
Philo Farnsworth sketched his electronic television idea as a teenager and transmitted his first image in 1927.
The word 'pixel' is short for what?
AnswerPicture element
Pixel is a blend of 'picture' and 'element', the smallest controllable dot of an image.
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