Hallmark movies channel is breaking up like watching satellite dish when it raining... All other channels working ok. Called Xfinity with no help.
What zip code is your service in? I watched Hallmark channel last night with no issues such as you described. I'm in Vermont, 05478. There was slight rain.
Does it happen only when raining? And only Hallmark channel? If so, that's pretty strange. There were issues reported by many users several months ago where only Hallmark channel was having similar issues (no rain involved). The issue cleared before any explanation came from Comcast. Suspect it was a broadcast feed issue from Hallmark source.