We live and Maryland and have the same problem. It’s most noticeable on the HD channels – TLC, Food Network, HGTV, and the Travel channel. We had several technicians come out and they confirmed that it is not our house wiring. The problem is at the junction box in our neighborhood. The local line supervisor and local Xfinity store manager are aware of it but, won't give me a status update. It's very frustrating!
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