I was going to say, "didn't we just do this a couple of weeks ago?", until I saw that you were in the UK Csalt.
The tv/satellite dish fixed themselves, but oddly enough, I had to do the computer manually, although I have a feeling that I may have to redo it manually since they changed DST here to an earlier date. I have a feeling the computer will change it via the old date. Only time will tell.
As far as the clocks, I just had the kitchen clock, oven clock, & microwave clock to change - along with wris****ches. Husbands alarm clock reset itself.