Digital TV Walkman or Mobile TV buying advice?

My walkman radio has built-in TV audio which is also analog and will not work after the upcoming digital conversion. Are the stations going to still broadcast over radio waves as analog??

If not, I'm looking for something smaller and in one piece, that can be held in my hand or stuck in my pocket. I have read about the Axion, from Amazon however, it has a remote control and several pieces to hook up. It's hardly suitable as a walkman type of TV. Do you know of any portable DTV players that will be even smaller than these you have reviewed and that are self contained in one piece, that can fit in a pocket? Thanks for your help.