Just made IMDb pages for two television shorts of 1937
Both telecast 23 December 1937. Both aired live on the BBC. Yeah, BBC TV existed back then. Both are lost, as methods to record live television did not exist until late 1947, and were used rarely by the BBC until the mid-1950s.
"Little Red Shoes" is a 10-minute short featuring Lydia Lopokova telling a story, "The Red Shoes" (written by Hans Christian Andersen...I listed him as writer).
"Polite Wine-Drinking" is a 15-minute short in which Marcel Boulestin and Nesta Sawyer had a discussion about wine. They discussed the characteristics of good wine, and discussed how wine should be served.
OK, so they were pretty much "radio with pictures", but I bet they were more entertaining than anything broadcast on MTV during the last 15 years.
I hope I didn't mess up the submissions. Since they aired live, I cannot be completely sure they were actually broadcast.
See here:
http://genome.ch.bbc.co.uk/schedules/bbctv/1937-12-23
You're not getting any thinner, this time you're a cookie winner