Another option, if you’re already using all of the BT connections from the ATV, might be to get a BT transmitter for your TV and just have the sound directly from TV to headphones, bypassing the ATV.
Another option, if you’re already using all of the BT connections from the ATV, might be to get a BT transmitter for your TV and just have the sound directly from TV to headphones, bypassing the ATV.