Hallmark Christmas Channel

Our Hallmark Channel is a disaster and has been for like a week - the picture is all glichy and has lines and bars crossing the screen and the sound is also interrupted and jumbled. A housemate said they chanced upon 1 other channel that was doing this but they don't know which one. We would love to be able to watch our Hallmark movies - is it a problem on our end or is the company working to fix a problem on their end??