.... Clocks won't run right, either, due to the voltage difference, ....
Nope, ..... due to mains frequency difference. British mains ac is 50Hz, compared to the US's 60Hz mains. This means that anything that depends on the mains frequency, including clocks, and any thing with motors, runs 17% slower than it ought to, and would stop TV's working even if the TV signal was compatible.
Sorry Stephanie, my pedantic side just let go!
BTW American DVD players will work, with a transformer - DVD players, and CD players, including computer CD ROMs have their own speed governor, but they will only play region 1 (American) and Region 0 (international) discs.
If you need transformers check
DVDOverseas.com as they sell transformers at a good price. Make sure that you buy ones with excess capacity, especially for hifi equipment. I'd recommend a voltage stabilizing one, with
at least 1000w capacity for hifi.
However your computer may work without too much problem - I hear that many have a voltage converter switch on/in them, so you may be OK there.
Mostly I'd agree with Stephanie though, it may be easier to bite the bullet and replace most of your stuff if you are moving to the UK permanently.