Apple TV Video Signal Times Out

That's the best way I can describe it. Since installing the latest firmware (allowing rentals, new UI, etc.) if I turn off my TV (panasonic plasma) then turn it back on after a couple of hours the monitor reads "no signal". The only way to get it back (that I've found) is to reboot my Apple TV. I'm using HDMI out for the video connection (direct to monitor) and fiber for the audio (to receiver).
Anyone seeing this behavior and/or know a better solution than unplugging and plugging in the apple TV unit over and over?

Thanks for the reply. Neither switching the TV input nor the apple TV remote will 'wake up' the apple TV signal. The only thing that seems to work is power cycling the apple TV.
An example: Before this last SW update I could turn off my TV and receiver (say after watching a movie), come back in a couple of hours, turn the TV and receiver back on and there would be my apple TV screen saver and I could nav around etc. Now, when I turn everything back on I just get the 'no signal' indicator on my TV - nothing I've found short of power cycling will bring it back.
Any other thoughts?

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Hi TonyWash,
Welcome to the Support Communities!
Is the Apple TV timing out while you are Home Sharing, using Airplay with a device, or working directly from the Apple TV menu? Without knowing the specifics, I'll provide some basic troubleshooting for your Apple TV:
One of the first troubleshooting steps is on Page 26 of the Apple TV User Guide:
manuals.info.apple.com/MANUALS/1000/MA1607/en_US/apple_tv_3rd_gen_setup.pdf
Try resetting your equipment by disconnecting Apple TV, your TV, your wireless networking equipment or base station, and your router
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Apple TV (2nd and 3rd generation): Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/TS4546
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OK, this is not a knee-jerk reaction post - I have read through the discussions here, and I still don't see what's wrong.
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