Retro gaming enthusiasts demonstrate transmission of C64 games via YouTube
tomshardware.com
tomshardware.com
https://www.tfw8b.com/introducing-jelly-load/
I'd heard of radio transmission of software during the '80s, but I hadn't heard of the use of TV transmission:
>Back in the 1980s, the BBC did something similar using a DIY tuner viewers attached to their TV screen. During episodes of the short-lived series 4 Computer Buffs, a flashing light could transmit the code for an application to the Commodore 64, Sinclair, or BBC Micro.