Well -- like the title says. TV is in one room, Apple TV is in an AV closet over 30' away. The process appears to involve the iPhone and Apple TV communicating via Bluetooth, but it won't work from that far away.
Apple: Please come up with an alternate means of kicking off the calibration for those like me who don't have their Apple TV immediately adjacent to their TV.
Apple: Please come up with an alternate means of kicking off the calibration for those like me who don't have their Apple TV immediately adjacent to their TV.