From the link Jackee provided:
Q: Is it true if I subscribe to cable or satellite TV service, I can continue using that hand-me-down TV set from a few decades ago after the switchover?
A: That's right. Because if you're not even using your TV set's over-the-air tuner, there's no problem. You'll continue to receive all the channels you'd expect--including local broadcast offerings, assuming the service carried them in the first place and will continue to do so--without any need to buy new equipment. And naturally, those who receive Internet Protocol or IPTV--that is, channels shuttled over the Internet--through telephone carriers like AT&T and Verizon, won't have to make any changes either.
There's a lot of hoopla over a non-issue.