There was once a website called Prate, the organ of Jemma Hostetler, that playfully described itself as a "computer channel."
(Pretty sure she never did station idents, though.)
Lots of people have long been working towards various goals collected under the header of "the internet taking over the television." To the point where the line between the two is soon going to be very blurred.
People have been making tv for the internet for a long time — from Rocketboom, The Guild and Boing Boing Video to videobloggers and lifecasting channels. People have been making information services for the tv for even longer, since the days of Minitel and Ceefax.
Apple TV is already working. Google is developing Android software for televisions. Lots of people consider the tv to be just a big screen in your room that needs repurposing. Which is interesting to me for a few reasons, not the least of which being that I betcha more people timeshift their tv viewing on a computer screen than they do on a DVR hooked to a tv screen.
Are tv manufacturers really going to be an endangered species that need propping up with internet-company OS grafts?