Lots of TV channels are suddenly missing using Stream!

Weeks ago all of the major networks and my premium movie channels disappeared from Stream's TV listing.  I called customer service, nothing.  They have no idea what happens on the Stream app.  I have not changed my Xfinity subscriptions - but now I have far less access to standard cable TV stations.  No CBS, NBC, ABC... No HBO, etc.  I can watch them all on my TV set, and used to be able to on Stream, but not any more.  I have not seen anything from Xfinity about changes or how to get back my missing channels.  If you lost your broadcast rights you better tell your customers!  Fix your Stream service!  Reset my TV entitlements!  Do SOMETHING!