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Yes, in the 1980s we downloaded games from the radio
(newslttrs.com)
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this post was submitted on 29 Mar 2025
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for a while they sent websites over the tv signal. i forgot how it was called tho. you needed a tv tuner card to receive it on your pc
Are you referring to Teletext, or something else?
That reminds me. They did used to broadcast software over teletext over TV https://teletext.mb21.co.uk/gallery/ceefax/telesoftware/
There was also a system where some TV screen pixels were used to send data, but I'm struggling to remember how you were supposed to get it into the computer.
I suspect that you needed to build some light sensor with a serial cable, that you held to the screen, but I'm not sure.
This was in the Netherlands, not sure if it was done elsewhere.
I had heard of this but your comment sent me searching for more info. I think you might be referring to Visicode.
https://archive.org/details/PersonalComputerWorld1985-07/page/286/mode/2up?q=visicode
https://www.youtube.com/watch?v=xxo1Gs46ti0
https://archive.org/details/PersonalComputerWorld1985-08/page/194/mode/2up?q=visicode
That looks interesting, but it's not ringing any bells.