The NTL deal varies in different parts of the country - we've had a communal aerial system in Harlow forthe last 40 years or so, which has now been turned into a cable system, part of the NTL organisation.
If you are in an area where NTL are the cable suppliers, the deal is £9.25 a month or about that to get the basic cable system (normal terrestrial channels, plus a couple of others - Parliament and BBC 24 hour news and Performance and something else), and the phone. The freephone Internet arrangement is thrown in, and I understand you can use that via a non NTL phone as well, if you've got one. (But the NTL line doesn't like some types of modems.) No minimum phone required use or anything like that.
There's also a connection charge of £25 normally, but they have offers every now and then which waive that, and they had one the month I got connected.