YouTube Rumored to Launch Professional Channels

If the rumors are true, YouTube is looking to enter the online video distribution market for professional content. From the Wall Street Journal:

YouTube is trying to become a next-generation cable provider overseeing dozens of free online “channels” with professional-grade shows, people familiar with the matter have said.

I wonder how existing cable companies—many who also offer broadband internet—will react to YouTube’s rumored venture. It also has me wondering how this will work for users already restricted with bandwidth caps, such as Comcast and AT&T.