How do I delete the old TV from the list for screen mirroring?

My Mac drops the AirPlay destination devices, when I unplug them from power. It should only show devices that are available.

- Try toggling the menu item from System Preferences﹥Displays, for an extra reset.

- Try restarting your Mac, if you haven’t already done so.

- Try renaming the AirPlay identifier name of the TV in the Home app on your iOS device.

None of these are old; both are 2020 models. The last three letters indicate a sales region or reseller for LG. Could it be that there are two very similar TVs detected in your area (e.g. a second TV in your house, or a TV from a neighbor in an apartment building)?

AirPlay screen mirroring gives LIVE options, not options from the past. There is nothing to delete, it actually detects two identifiers to connect to with similar names.