TV & Home Theater

[gelehu]

Ive read relevant postings on board and still have a few questions. I can only get SD signal from Comcast where I live and I know that I wont get a better picture with a HDTV but will it be worse? Does screen size matter ? Does it matter with SD if I have a Plasma or LCD? I do have a digital package with a box, will the digital channels be better than the analog with HDTV? Read one post that said LG was a good brand to purchase with SD signal. Is there something to look for feature wise when buying a new HDTV for a SD signal. THANKS