I have a dim memory of this, because there was a guy - Gary Burgeois who did a satellite radio show back in the days I had my big C-Band dish - who used to transmit stuff like this. If you knew how to decode it, there were a lot of documents and information to discover.

This is from an Indian newspaper but I wonder if anyone here ever actually did this back in the old less sophisticated days of the early consumer computer age.

"Personal computers in the early 1980s often lacked internal hard drives and relied on floppy disks or cassette tapes for data storage. To load a game, users would connect a tape machine to their computer through a special port and press play. Similarly, saving a game required hitting 'record' on the tape machine.

Radio producers discovered that they could broadcast programmes and games in a format that preserved the digital code, enabling listeners to record the broadcasts and obtain their own copies."

When listeners could download video games via radio in the 80s