Hello there I'm new to HDTV and I live in the heart of LA, so I figure I should be able to get OTA reception. I don't care about DirecTV or HBO and such, so I just want CBS, ABC, etc. Anyway, I have a Toshiba 65" HD set, and the receiver box, but apparently my UHF reception is not strong enough. I've been told I should look into a "UHF booster" or something to attach to my rooftop antenna. Unfortunately, I don't trust Circuit City, Radio Shack, etc., for help, so does anyone have any advice? Is it best to try and find a good custom installer for this type of thing, or is what I need pretty simple? Thanks!