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That's an interesting question. It should work if you add all 10 TVs as managed devices and create a single "Watch TV" activity to turn them all on and then just push the "Off" button to turn them all off. Are all 10 TVs different models? Are they in a wall-mounted grid bank of TVs or all in the same line of sight so you can aim the remote at all of them at the same time? If you have the same model or even similar models from the same manufacturer you may be able to just define a single TV device since the same IR codes will probably work on all of the TVs. You would only have to define a new TV device for each unique model. An easy way to test this is to just use the remote control that came with each TV. Stand back far enough for the single remote to have line-of-site to all the TVs and press the On and Off buttons to see which TVs respond. Keep in mind if you can turn off and on multiple TVs, that also means any other commands like channel selection, mute/volume control, video source selection, etc. will work on all TVs from a single 655 remote keypress. I would be interested to hear how this works out. ;^)
Sorry, there was a problem. Please try again later.The Harmony 665 can be used for up to 10 devices, but it won't "Power on & off" 10 TVs at the same time. For that kind of automation and capability, you'll need to consult a professional A/V person. - Richard from Logitech
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