I recently got a 3rd generation AppleTV. It works perfectly on my non-Samsung TV. I tried connecting my AppleTV to my Samsung TV using HDMI cable and it only gives me "No Signal". My TV have 2 HDMI ports and both ports works when I hook up my BD Player and PS3. So ports on the TV is working. My AppleTV is working on my non-Samsung TV using HDMI. My TV resolution is upto 1080p. No settings on my TV that I can change that pertains to HDMI or resolution. Same with my AppleTV. Have tried using 3 HDMI cables as well. Firmware on my TV is upto date.
Does anyone have any other tricks under their sleeves?
Light bulbs you shouldn't buy
There are plenty of dimmable LED light bulbs, but make sure you don't buy the ones that flicker when you dial them down.