When using Halo Channel app on Xbox One or Windows 8.1/10TP the audio for Juggernaut, Edification and One Way Ticket played in another language, even though my system is set to English, and the current language was confirmed during playback as english. Playing another video then returning to rewatch the episode fixes the problem in most cases, but language skipping is sproadic.
I am also having this problem. The halo channel is god-awful!!! Fix the Halo channel 343