Haha nah I knew you didn't work in cable, I was just curious, not many people on this site (I lurked a while
) who are qualified to tell me how this stuff works and good to have someone who's happy to try keeping me honest and attentive.
As you have an interest in it perhaps you should consider it when you graduate. Just take as a warning that there's a hell of a lot more to it than you see here and it is painful to learn, I spent 3 years learning the stuff and I'm a newbie. Learning the specs is easy, learning where / what / why and how is nasty but rewarding.
You're right as well of course, ntl are skipping it and going straight to DOCSIS 3. I was merely pointing out that current tech *could* do it rather than the experimental and in development pre-DOCSIS 3 kit.