beejay, even taking into account that you've suddenly thrown in other sports after first talking specifically about the football, all the things you've just mentioned are still a mere drop in the TV ocrean. The Champions League matches I think you were referring to, yes ITV1 show those live but over the course of a year they're pretty sporadic. The Saturday matches are only shown as highlights on Match of the Day, which is a part of the regular TV schedule during the season. An hour a week for 9 months... not exactly excessive is it?
By the way my "every 2 years" comment includes the European Championships, so those are the next big tournament, in 2008. Just so you're prepared to do some more football-avoiding in two years' time.
With the other sports you mention, Wimbledon is as you say 2 weeks a year; you're entitled to think that's too much but I think you'd be wrong - compare the hours of tennis broadcast to the total number of broadcast hours on BBC1 & 2 over a year and it's miniscule. You generally find that when there's golf on BBC2 and cricket on C4, it's exclusive to those channels and is therefore easy to avoid.
Does motor racing (which I find stupefyingly tedious) cause other programmes to move? Oh well... so do extended new bulletins, sometimes. Schedules are subject to change. It can be irritating if you're waiting for something, sure. But the times motor racing causes that to happen must be about as infrequent as when it's caused by extended news, surely?
I'm happy to read you join me in avoiding the utter crap that forms part of the schedules on a DAILY basis.