Anyone know of a place I could troubleshoot problems with my TV?

I have a Sharp LCD TV, and for some reason, the hunk of shit won't change inputs from HDMI 1.

I'll change it, say, AV input.

It'll hang at the input menu for a few seconds before staying on HDMI 1.

It's bothering the shit out of me, because I wanna hook up my PS2 to this thing.



I can't find any dedicated forums to get help, so I thought I'd start here.

You could google local T.V/electronics repair, or I'm pretty sure BestBuy/TigerDirect repairs things. Albeit at a higher cost.