sasazuka - 2018-02-10 Oh, I probably should have thought about checking Wikipedia before asking but I didn't think there would be a list quite that specific on there.
ABBA didn't invent the "promotional clip" format but they certainly were an enthusiastic early adopter. But I suppose ABBA's popularity was already waning by August 1981, especially in America where they really only ever had a single number 1 Billboard hit ("Dancing Queen", obviously).
boner - 2018-02-10 As far as I can tell, every band who ever pre-recorded something for Ed Sullivan (or Top of the Tops or whatever) think they invented the music video.
I do remember seeing the ABBA videos in the 80s though... they were a band you weren't supposed to like even if everyone secretly did.
chumbucket - 2018-02-12 24 hour stereo music television