In former GDR (Eastern Germany) there was a computer show on the radio where programs were broadcasted this way. Listeners could record the programs with tapes an then run them on their computers.

Sounds very much like BASICODE[1] which was used to broadcast e.g. tax return software on national public radio in the Netherlands back in the 1980's

[1] https://en.wikipedia.org/wiki/BASICODE

Ah yes, we had something similar in Romania too, only that it was on national television. I got so many games and programs from it. Since they had reception everywhere in the country I was able to record them from the country side or a monastery too.

We had it in the 80s using a BBC Micro tuned into the Ceefax broadcast. Here's some more information about the expansion unit: https://www.wikiwand.com/en/BBC_Micro_expansion_unit#/Telete...

Here's a video showing it: https://youtu.be/ctxZWEVJ1S0?t=147

This is a great nostalgia trip!

Same in Poland, good memories (not such good government though)

I get so nostalgic hearing the dial-up-modem-like sounds from their video.

don't be https://www.youtube.com/watch?v=r6UR_3ZieE4

Yeah same with LISP and revival of functional and meta programming. History may not repeat but it sure rhyme.