There is absolutely no doubt that the way we watch TV has changed and is going to be changed radically in the following year(s). Just look at how the way we listen to music has changed in recent time.
Some of my Swedish neighbours has come up with a service called Magine which aims to do exactly what I was talking about - reinventing the TV. Magine wants to give you the possibility to watch TV everywhere from your TV, tablet or phone using the internet. Also, Magine wants you to be able to watch live broadcasts but also see episodes that already has been broadcasted. This means that all historically TV is available to you - everywhere and at any time. I am a big fan of the idea, but also a bit sceptical about how long it would take to get all the popular channels in most countries aboard. And how will Apple react to this with their upcoming TV?