This caught my eye the other day. I don’t think I’d ever head of or seen a binary be broadcast as audio over television before. The whole episode is pretty interesting if you like 80’s British campiness but the broadcast is at 4:47 for those TL;DR folks. I’d love to capture the transmission and poke around with it in Audacity. There’s a pretty decent reference to Acorn’s data encoding format here: http://beebwiki.mdfs.net/Acorn_cassette_format