I have the built in tuner in my tv so should I automatically get hd local channels. Do I have to set it a certain way. I still use my over the air small ant. to get local HD channels. I want to unhook it and use my HD tuners in my Plasma...How do I do that???? Im using Direct tv.
Rod, the HD tuner in your display needs an antenna to work. You can't unhook the antenna and expect the same reception of your locals to continue unchanged.