Hello,

I have a memory seeing such a system, or actually the transmitted signal on a small German TV station in the early 90s (maybe end of the 80s).

I'm not sure if it was data in the video, or in the audio, or both.

it was somewhat like that at the end of the show "today you get a new little game. please start your recorder now".

you recorded for a few minutes and then you could read the video tape with a special interface into your computer, to get the transmitted software.

problems are, I can't find anything about that system online, nor do I remember for which computer it was (most likely C64).

does anyone remember this system and its name?

maybe it was some German thing. I don't know.

and maybe someone also remember the name of the TV show, which used this?

thnx