@Simon Ward Re: letters from TV Licensing
Simon, if you threaten them with legal action for harrassment, writing it in a letter and sending it to them, they'll stop. I wrote a very strongly worded letter to TV Licensing regarding their tactics, and threatened to take them to court for harrassment if I received one more letter that practically accused me of being a criminal.
They apologised and stopped the letters. DO NOT bow down to them. Tell them they are thugs and nothing better, and that you won't have it. Other people (see the URLs below) have done the same:
http://www.marmalade.net/lime/
http://www.energygrid.com/action/2007/02-tvlicensing.html
The below links are very useful and sum up some of the things I've done. The second is a great form letter:
http://www.bbctvlicence.com/Tips%20for%20avoidng%20TVL-BBC%20harassment.htm
http://www.giddyboy.f2s.com/TVLetter.html
Also, the BBC Trust is currently investigating the claims by many people about the heavyhanded tactics of TV Licensing, I emailed the BBC Trust to tell them my story, and they responded saying that they'd added my name to the list of people who have had a bad experience. You should too. You can contact the BBC Trust from their homepage.