I recently bought a new LCD, a polaroid 37" FLM-3732. I signed up with Comcast for their digital cable service. now, i have two questions.

I have the tv hooked up through two splitters rated at 900mhz to my digital cable box. the cable then comes out of my box to the UHF/VHF input on my tv.
my TV also has the option to output in i think composite (Red, Yellow, White). would sending the image to my TV in composite make it look any better?

I am thinking about talking to comcast about a HD-Reciever to send the digital signal through component or would that be pointless without subscribing to HD programming.

I'm pretty new to home theater and any info would help.
Thanks in advance.

my TV also has the option to output in i think composite (Red, Yellow, White). would sending the image to my TV in composite make it look any better?Yes, composite may look a little better.

I am thinking about talking to comcast about a HD-Reciever to send the digital signal through component or would that be pointless without subscribing to HD programming.If your TV accepts component or DVI/HDMI, then you should definitely request the HDTV STB/DVR. HDTV local feeds (ABC, CBS, FOX, NBC, etc) are included with the cheapest level of Comcast service ($12-$15/mo). If you want other cable channels in high-definition, like ESPN-HD, ESPN2-HD, Comcast Sportsnet HD, Discovery HD, TNT-HD, and the upcoming CNN-HD, SciFi-HD and HistoryHD, then you'll need to subscribe to digital cable.

Comcast doesn't sell HDTV channels separately; they are included with their existing packages.

If you LCD HD TV has HDMI then you should definatly take advantage of that.

Try not to use composite video.

If you don't have HDMI then go with component video, that will be your 2nd best choice.

Well, you can ask for a HDTV STB, but they're probably not going to allocate one to you unless you subscribe to HD services.

Shoulda got a TV with a QAM tuner built in. That would allow you to get unencrypted HD channels at no extra cost in your CATV service. Speaking of QAM tuner, are you sure the TV you have DOESN'T have a QAM tuner?