Hi Bobsta - Welcome to cableforum!
As most of the debate so far is whether an NTL PVR Will be released at all, such details are a wee bit far off at the moment
Mods - sorry for slight OT-ness here...
NTL Only broadcast in stereo, not 5.1. You can get a scart plug that splits out the sound so you can pipe it into a cinema system, which works pretty well for me...