Xfinity Stream HD
Hello. I use Xfinity Stream Beta on my roku. All of my channels are in HD, except for the additional premium channels of Starz and Showtime. StarzHD and ShowtimeHD broadcast in HD, but not the other Starz and Showtime channels. I can find the same movie On Demand and watch it in HD, but no live HD. I don’t understand. Please help.