Updated appletv software. It connected to bedroom tv and not living room tv.
how can I get appletv on a different connection? It is now on bedroom, which I have never used. It should be on living room
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Use the Home app on an iOS device to make edits to your Home,
or edit the room setting on Apple TV: Settings﹥AirPlay and HomeKit﹥Room﹥.
If you mean the which device to connect to for AirPlay or the software remote,
then wait for all options to appear. Verify that all the devices are powered and networked, so that they can be seen (discovered) on the network.