You all are AWESOME! Thank you for your replies. Before posting this thread, I suspected it was the antenna, looked for a crank inside my coach, and did not find one. I looked in the manual and it briefly addressed it as an option.
My next question is: If I am at a site and get an error on the TV that I don't have a signal (or signal is weak), is there a way to adjust this antenna? I see cables connected to the back of the TV. Do I need to select whether or not it is cable or antenna signal that I am using? If so, is it in the settings menu of the TV itself? Thanks!