Help - Samsung, weak or no signal and green screen

First time posting.

You guys all seem very helpful so thought i would post my problem.

I used to have the 360, but it fried on me. When using the 360 hooked up via component cablesi used to get green screen.

I decided to puchase ps3 for the upcoming games and hard ware reliability. So far i love Sigma, and Rfom. Tons of fun.

Last night while playing the Ninja Gaiden demo and uncharted demo, the screen would once in a while flcker green. Then after about an hour of play, the screen went black and read "weak or no signal." I tried shutting off the ps3 via the controller to go to standbye mode and nothing. So i turned off the power on the front, to go to standbye mode and this worked. It beeped 3 times then shut off.

When i did the 2.0 download over the weekend, i got the same weak or no signal. It did this for a good 4 hours. I didn't shut it off because of everything i have seen says thats a no no during firmware upgrades. FInally the signal returned and 2.0 completed.

Ps3 is hooked up via monster HDMI cable. TV model is Samsung LN-T4061F.

Since i have had the green screen problem with both the 360 and ps3 i am thinking its the tv. But i used component for 360 and hdmi.

Thanks for the advice.

I have cable hooked up to it. I couldn't get the hdmi to work for that either but passed on the issue.

I have time warner cable, had some issues with HD channells, I get a little blip through the picture, and a couple times during prison break last nightit skipped a bit. I am not sure if that is Time Warner or the tv. Standard Def channells look aweful, i was expecting that. But my inlaws have a low end HD TV and their SD channells look much better. Again maybe its the cable service and not the tv. But the HD channells look awesome when the above issues aren't occuring.

I purchased the tv at Circuit City and bit the bullet and purchased their protection plan. Do you think they would let me return it for store credit? Spending all of this money only7 months ago to have it serviced just doesn't seem adequate to me. I paid alot of money for a quality HD tv and for it to require service inside of7 months of purchase should require replacement not service.