Oh, sorry, I was talking about the traditional TV that comes through the old standard antenna cable. In those, the TV itself lets you do it, but I realize that

Oh, sorry, I was talking about the traditional TV that comes through the old standard antenna cable. In those, the TV itself lets you do it, but I realize that it may not be possible in paid TV services. I wonder why they don't themselves move the HD channels forward, though... I suppose by now, an overwhelming majority of TVs have HD.