Back in the 1980s the BBC released this concert on laserdics and then on video,using an in-house process that the first time allowed an acceptable transfer of NTSC images to PAL. The picture was not terrific - Never Twice the Same Colour never is - but technically it was a real achievement.
Unfortunately, the image on this DVD appears to have been lifted straight from the original NTSC videotape and it looks absolutely awful - washed out, underlit and grainy.
It would have been much better if the BBC transfer had been used. Then we would have had a great concert and picture.