A slide presentation directed by Anders Hanser (pictures) and Peder Wistedt (programming) consisting of hundreds of stills taken by Anders Hanser from the 1979 concerts which was used as the official PROMO clip (with additional verse and chorus).
It was re-edited for the More ABBA Gold video cassette (without the additional verse, but same length in 1993).
The Agnetha / Benny / Bjorn / Frida parts were re-used in the 1992 Dancing Queen PROMO.
Thanks to Trent Nickson
Some information from ABBA Magazine No.36.