Wayzel
have a browse of the forums on thegreenbutton.org
http://thegreenbutton.org/forums/default.aspx
It's a site dedicated to MCE users but it's (obviously) heavily biased in favour of American users but there is quite a bit of UK based posting too. I was browsing it this morning and was reading through some threads discussing problems with MCE and ntl set top boxes (particularly Samsung ones).
Good luck