I've uploaded a Killer Queen video, recorded in the TOPPOP studio in the Netherlands 1974. (Toppop was the Dutch version op TOTP). Correct me if I'm wrong, but I have not seen this video on any Queen tape, laserdisc or DVD. I taped it from Dutch television years ago and as far as I know it was also recorded especially for Toppop.
I agree about the bad filming on TOTP because the camera always went behind those bloody lights and props, it was like you were seeing them through jail bars or summit. Awful.