Needs Chromecasting
If you already pay for a box in your front room, you should be able to chromecast to a tv in another room. If you can watch it on a MacBook or phone, why not another tv? The technology is there. Comcasts greed is too, though.
Also, you can only use when on home wifi - making it a redundant service. Completely useless.
Los[T]Realis[T] about
Xfinity Stream, v4.4.0