Hi, I understood you would need a 1m+ dish to watch UK tv. Is that not the case?
Many UK TV channels, and over 60% of the sky pay tv service, can be received on an 80cm or 1m dish.
Its just if you want the main UK TV hcannels like BBC or ITV or C4 that you require a big dish for. In some areas a 1.45 dish does the job, in others a 2.4m dish is required.
If all you want is a bit of news and radio and "crappy" movie channels (ie keep in touch with the world!) , then an 80cm to 1m dish, and a free to air receiver should suffice.
If you have a sky card in the UK, get a sky box for spain, and bring over your card. you will get about 50-60% of the channels you pay for (not the sports or movie channels as these will be tied to your box at home)
I did this list a few weeks ago.....
http://www.satandpcguy.com/Site/uk_tv_channels_available_on_small_dish_costa_blanca_spain.php
TDT is free, has about 30 spanish digital channels. There are NO english cannels on TDT, but on many programems you can change the programe audio intot he programmes original audio, in many cases this is English. You need a TV aerial (there is no such thing as a digital aerial, there are only TV aerials, and depending how they are configured means they receive analogue or digital TV!), an ampilifer (ideally a masthead amplifer and internal power supply) and a digital receiver (normally a TDT set top box, or a new TV with built in digital TV tuner).
YOu can now get TDT receivers with USB ports...allowing you to play "downloaded" movies stored on a USB stick.