"Here is the Rock and Roll Medley from Earls Court (06/06/77) in mp3. Somebody rumoured that it was the only time Queen played the medley in full.".
And how about the second night?the medley was even longer.
...at Earls Court. I haven't actually heard the medley from the following night but according to queenconcerts.com they didn't play Saturday Nights Alright For Fighting.