TVS adverts and junction, Monday 7 April 1986:
Everything in this video is good - but what stands out for me most is the first 40 seconds or so of the new series of University Challenge.
This, of course, was the penultimate series of the Bamber Era, and the first to feature the unpopular 'Pass the Baton' format. It was also the only series in which the teams really did sit one above the other, although the split-screen effect was still used as the upper team (so to speak) sat behind the lower team as well as above them.
Dailymotion has the second half of a match from this series - the weekly final between Queen's Belfast and Imperial, which aired (in most regions, anyway) on Friday 9 May '86. (I hardly need to say that the 1985 copyright date indicates that there was a fair amount of time between production and broadcast...)
http://www.dailymotion.com/video/x3y5ae_university-challenge-1985-part-1_shortfilms
http://www.dailymotion.com/video/x3y5nf_university-challenge-1985-part-2_shortfilms
http://www.dailymotion.com/video/x3y6lh_university-challenge-1985-part-3_shortfilms
Disappointingly, it appears that the only clip anywhere of the batons in action is the short one from the 40 Years/Story So Far documentary, with the top and bottom chopped off and Caroline Quentin's narration drowning out the other sounds. (I don't dislike her, mind, but you know what I mean.)
Indeed, there aren't all that many clips from the entire Bamber Era on the Internet. Obviously, most episodes from the '60s and '70s have been wiped - but one would think that there'd be a few more clips from the '80s. They'd certainly make a refreshing change from new episodes going up on YouTube almost as soon as they are broadcast...