Just as I often vent against normal voice calls being labeled something different (Internet Telephony, VoIP, etc) just because "new" technology is being used to carry the call, so too is my frustration with the world of television. Yes, Youtube is interesting at times, and useful as a place to store video to be widely shared, but it is not television. And you would not kick back at night to "watch Youtube." Or at least I hope not.
I am still formulating my own thoughts and ideas, but see this discussion on Kfir Pravda"s blog (which itself in general is worth tuning in to...): here or
http://pravdam.com/2007/08/20/can-someone-please-create-the-hbo-of-online-video/