Maca54

This seem like a great deal to me, especially when you consider you're getting it w/o taxes, shipped free and it looks like they're throwing in an awesome tv stand. My only question would be that I'm not going to be hooking this tv to an hd cable box for a few months when I get direct tv, can you hook an hd tv directly to the wall with a cable wire? If so, is the picture ok??? Thanks in advance!