Didn't BFBS used to run their own channels until a few years back, when they switched to similcasts or time delayed versions of the UK terrestria channels?
Yes. And going back a long way it was a single analogue terrestrial channel with the best of BBC One, Two, ITV, C4 and later C5, known for a time as SSVC Television.
A typical weekday schedule 25 years ago was BBC Breakfast News (with Newsroom South East) to start the day, some Schools programming, a live simulcast of This Morning at 11:30 CET, then the ITN Lunchtime News, followed at 1400 CET by some daytime soaps, Countdown, children's programmes and the ITN Early Evening News. Soaps, dramas and shows followed from 1900 CET, until the BBC Nine O'Clock News at 2200 CET, and then some more drama and shows until closedown. Saturday daytime was largely a BBC One simulcast with the Saturday morning children's programmes starting at 1000 CET and Grandstand in the afternoon.
Due to most of Western Europe using PAL-BG, where as the UK used PAL-I, many television sets in the countries where SSVC/BFBS was transmitted couldn't receive the sound, until multi-standard sets became more commonplace.