Ok I finally got a little spending money and I am getting a flat screen 32 inch by polaroid(price is right for the pockets or I would get better). I dont know much about tv's. But I do know that I have to order a HDTV box from cable I have roadrunner,Live in NYC. What I was wondering is I will have my tv for a week before cable comes to give me a new box, How will I tell the difference if I am watching a HDTV channel or Just a regular channel. Does it say HDTV on the Screen or something. Thanks for any help