I think most people need to be in "passive mode" at times. There is no substitute for sitting on a couch and doing nothing while a device shows a mix of recorded and live content continuously. Having limited choices is good in that context, because it removes the need to think. You flip through the channels and stick with one that seems interesting for the time being.

I believe the current "passive" mode of TV won't go away. It will coexist with the Youtube mode of actively finding, watching, following recommendations, etc.