I just notice that the music choice
channels that I always had in the 400 channel range the music choice channels now start at channel 1550 and end at channel 1599 this probably has something to do with these channels going over IP now
Could you elaborate? A month ago I stopped getting the Music Choice channels through my box that enables HD channels (obviously not the Music Choice channels) but I still get those channels (400-450) through the smaller box that enables channels on an ancient TV from before HD . I tried the 1500 series on the box for the HD TV. Same result as for the 400 series: the banner at the bottom displays info about the channel but I get a "One Moment Please, This channel should be available shortly. Ref code: S0a00." I tried resetting the box by unplugging and replugging it. No luck.
Thanks for asking. I'm quite certain it's not an X1 box because when I go to https://www.xfinity.com/support/articles/self-service-set-top-box-program-non-x1-remote,
which contains instructions for how to program a non-x1 remote to control other hardware besides the box, I do recognize the remote(s) that are pictured. ( I do have two different remotes for the one box).