SANYO 32 HD and APPLE TV

I had purchased an APPLE and 32 SANYO HD TV several months ago they worked fine together. This morning after watching a few minutes of APPLE TV, then going to the store. Afterwards the APPLE TV would not start . It had done that in the past. I would unplugged it for 5 minutes and it would restart and work fine. However this morning that did not work. I called Apple support and they suggested buying a new cable HMI. That did not work. I spend fours traveling, waiting and then returning with a new APPLE TV. The APPLE guys could not get it to work at their store. The new APPLETV still did the same thing. I switched to component cables and it worked.

Are there issues with SANYO TVs and APPLE TVs