Traditional phone lines and TV going the way of the dodo?

Are we approaching the day when TV and phone lines are obsolete? Phone landlines are on the way to being obsolete. TV still has a significant amount of inertia to overcome, especially with DVRs so prevalent, but it could happen. I can already get all the services I would normally get from TV and a phone line from the Internet. They sometimes aren't as polished—if that can truly be said about some of the service my provider, Comcast, gives—as services that the incumbent companies give, but the Internet is increasingly approaching it.