I just got a HomePod but I'm having issues with what should be a simple enough feature. I want to start playing music (with Siri) on the HomePod and then ask Siri to also play that music in the bedroom (via an Apple TV). Siri parses this correctly, but the Apple TV pops up the 4-digit random passcode request that you would normally enter on your iPhone/iPad to initial "pair" the two. This was an option in previous versions of tvOS that seems to have disappeared in the current version, so I can't even turn it off. (The only passcode option I see in the tvOS 11.4 settings is the AirPlay > Require Passcode, which is a static 6-digit code. And I have that set to off anyway.) For reference I can Airplay from the Apple TV to the HomePod (by adding the HomePod as an audio source), but I can't seem to get it to go in the opposite direction. Any thoughts?