Andrew,
It's not the number of HD channels, it's the paucity of actual HD programming on them, this will take years to change. Hell- they were forcing widecreen down our throats for donkeys and now it's impossible to buy anything else, yet today some SD Sky digital channels still show brand-new, first-run programmes in 4:3?!
I wish I'd known Heroes was going to be repeated on BBC in widescreen - I wouldn't have bothered watching it when it first came out on Sci-Fi.
And don't get me started on Sky Movies - why are so many films (even premieres) shown in 16:9 instead of "proper" film ratio widescreen with bars at the top & bottom? Why am I paying extra to watch MOVIES when many of the films now look like poor-quality TV SERIES? As a result of the expansion to fit the screen they are now soft-focus and missing chunks at the sides. And when a director uses all of the screen, actors' faces can be cut in half.
If people really want this degradation of quality, they can press the "zoom" button on their TV remote!
Is it a conspiracy to force us into HD? (So we can watch er... only two Sky Movie channels, showing slightly older films than the Premier Channel ;-)
P.S. I have a 36" Toshiba CRT, which compared to SD Plasma/LCD, is already High Definition!