HT204498: Find the serial number for your Apple TV
Learn about Find the serial number for your Apple TV
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Helpful answers
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Nov 19, 2012 4:29 PM in response to raymonda123by vazandrew,No, it doesn't need to stay on all the time. You can leave it on if you want, since it uses little power, or you can go into settings and select sleep. You can also use the remote to achieve this (hold the select button for 5 secs)