Cable is overrated and will be obsolete in the near future. I haven't had cable in nearly 7 years.
We do one of the same things as the above article mentions, and that's have a PC connected to the TV (PC has it's own remote) and watch stuff that way. Don't have an HDTV yet, so that doesn't matter...and most everything I watch is streamed, downloaded or on Hulu (have been thinking about getting Hulu plus and netflix for a while now, even subscribing to both of them is much, much cheaper than cable).
When I do get an HDTV though, it most certainly will be a internet connectible one.
Most people pay for internet already, why pay for both if you don't have to? I certainly won't. Too much stuff you can get for free or low price if you just have internet...no sense in paying through the roof just to be able to flip a channel and find nothing you want to watch half the time anyway.