Why did old TVs require that the channel be on 3 before accessories like VCRs and game consoles could work on them?

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Anyone who grew up in the CRT era of TVs remembers that you had to turn the channel to 3 before you turned on the VCR or game console. Otherwise, the picture would not work. Why was this so necessary?

Edit: woah this blew up while I wasn’t looking! Thanks for the replies!

In: Technology

11 Answers

Anonymous 0 Comments

Is this a US spesific thing? Cause I had several CRTs growing up, the oldest one being from the 70s (which only has 2 tunable channels), and every one of these would work directly with game consoles.

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