I switched over to cable about a year & 1/2 ago(the only way I could get Broadband as Bt Hadn't opend up the network in my area and Iam still getting ITV C4 and C5 on my Sky Digi- box(un subscribed)
You can get free-view(well the channels are free but the box is about ?50) :-o or if you can get an old On Digital box for about a ?5 at a car boot sale or the Barrars if you live near Glasgow.