tvOS package for distribution fails to find valid certificate and valid provision [UE-39501] [Workaround]

No.

No.

It’s pretty sad. I started trying to submit my project for the AppleTV on 26 November 2016. UE4 hasn’t been able to produce a submittable build yet.

It might be fixed in 4.16. See Uploading tvOS project: ERROR ITMS-90513 & ITMS-90471 - Platform & Builds - Epic Developer Community Forums