Head to samsung.com and register your TV and in the US you usually get 3 more months of warranty.
After that, call it in. Be sure to track your TRANSACTION NUMBERS.
Hi, just new to the forums here. We purchased a Samsung 40" LED TV last July (2011) and all the HDMI's are not working now. We tried switching cables with one that we know works and even tried another XBox 360 and still nothing. These were working until we moved it into another room better suited for a TV of that size. So now that the big 1 year warranty is up we are left to fend for ourselves as far as the cost to fix this issue. I just wanted to know if anyone else has this issue and if so what was the problem and the solution. Thanks for your help