I finally got around to connecting my ATV4 to the hotel wifi, and now I’m 10 minutes into an episode and it’s running great (bandwidth dependent, had to put it at 2Mbps).
The only issue was that I couldn’t connect to my ATV4 from my phone on the hotel wifi, I had to tether it to my phone to do the authentication then back to the hotel wifi. Not an issue with Channels, but thought I’d share for people who might not understand why they can’t authenticate their Apple TV.