THEORY 1 - Kid Jensen's 45
We only have a couple of pictures to compare with but in the absence of anything else .. who knows? Notice that Björn wears the same (lack of) outfit in this programme as he does in the colour picture below ... but I think the background is not the same. Kid Jensen's 45 has scaffolding in the background, this mystery picture is more of a stage setting.
THEORY 2 - Top of the Pops
Could it be the missing "So Long" from Top of the Pops from 1974? Look at the background/set on this picture of Supertramp on Top of the Pops in 1975. Do you think it's the same or similar? Personally I think this is the answer, but would like to encourage a few more ideas to the pot. Look at this performance of "The Bitch is Back" by Elton John on Top of the Pops from 1974? Again, some of the set in the distance (what Elton would see from his piano) and behind him too) looks similar to the ABBA picture below, especially in pictures 4 and 5:
THEORY 3 - Super Club
According to
ABBA Annual ABBA were in Paris for three dates around 1 February 1975 and "They
sang 'So Long' on 'Samedi est à vous' (now identified as
Ring Parade), 'Waterloo' and 'So Long' on 'Super
Club' and they were invited on 'Système 2." Or was 'Super
Club' a radio show because there's no evidence of of a TV programme called
Super Club in the French TV archives. The phrase "were invited" on 'Système
2' sort of implies they were invited but didn't perform - or is that not the
case?
THEORY 4 - a completely new programme we don't know about!
THEORY 5
-
Midi-Première (1975)
Contradicting the move to 1974, could it be Midi-Première during trip
to Paris in April 1975? French fans, does this look like the set of
Midi-Première ? I think this is a long
shot but I'd like to hear from some French fans with long memories
before completing dismissing this theory.
Picture from "Sounds of the Seventies" magazine