I suppose we could add a large chunk of the ITV Schools/ITV Schools on 4/4Schools programme library to this thread, although I suppose it depends how much mileage you or your school managed to get out of the service either at the time or recorded and played back later, as it's very unlikely I'd have thought you got to sit in front of the TV for the entire two and a half hours.
Almost forgot, as we're now mentioning Angela Rippon, and as Wimbledon is on, how about Matchpoint, a game show that was in the 13:40 slot on BBC1, circa 1989/90?
Matchpoint was basically Masterteam II, it had exactly the same production team and the concept was basically the same, but they used tennis scoring to give it a USP and the star prize was a week of tennis coaching in La Manga.
Five to Eleven was an educational slot presented by children from arts schools.
It wasn't, actually, for most of the time it was a series where an actor would read poetry or short stories, a bit like an adult version of Jackanory, and just as boring, with a different actor and author every week. However, because it was on all year round, in the school holidays, when it was often in the middle of CBBC, it featured schoolkids reading more child-friendly works instead. But was just as boring.
Advice Shop was on BBC2, and Hugh Scully was a host of it.
Does anyone remember Holiday Outings? Often shown as filler material on BBC2. Basically, there would be a video, of someone visiting a place, that had originally been shown on Holiday on BBC1. The video would be shown as a stand alone programme, Holiday Outings, and after the short programme had finished, the continuity announcer would read out, over a slide, the address you could write to, in order to get more details on the location featured.
There was never any such use of reports from BBC2's version of The Travel Show.
[More starkly, can you imagine as a child on school holidays, watching But First This, but having to pause the fun for 10 mins for the news and this.
An era before people would flick to another channel at a moments notice and would actually wait patiently for 5-10 minutes.
And on Bank Holidays, fifteen minutes when they used to do Breakfast News at 7am and 8am in between the kids' programmes. Seems bizarre to think anyone would watch both, but I actually thought it made the kids' shows look quite important.