Better to use networks apps to watch

I have tried using this app several times. Each time the app freezes, or more often, while watching a show, it will restart from the beginning, play for a few seconds, then restart again. I have not been able to watch an entire show without issues yet. I know it isnt my device, as I can go directly to the network app (like NBC, CBS, etc) and watch the episodes with no problems. This app needs major work.

MomTrying about Xfinity Stream, v4.0.2