Nearly 40 years ago, I used to record "Pink Panther" cartoons off of the TV. I didn't have a VCR, so these were audio recordings. Although I couldn't see what was happening when playing the cassettes, I figured the Henry Mancini music would at least make me remember what had happened in each cartoon. It stood up fine on its own anyway.
Recording just the audio of a tennis match back then, though...Well, admittedly, that was just strange.