Hallmark channel frozen

Last year Hallmark Movies and Mysteries channel didn't work.  The video was broken and no audio but the hallmark channel worked fine.  This year I watched 1 or 2 nights of the Hallmark channel and then tried movies and mysteries.  I was surprised to see movies and mystery worked.  But now the Hallmark channel doesn't work.  If I switch to the Hallmark channel, the screen looks like the previous channel (whatever channel I was on) but frozen and pixelated.  No audio-- just like movies and mystery last year!  Please fix before Thanksgiving!