coax to the TV from the outside, maybe through a window, till the rebuild is finished. Don't use spray foam insulation unless you want your home to turn into a FEMA toxic trailer. Use fiberglass matting instead under that sheetrock.
I'm amazed at how much I'm dreading the construction work at our house. We discovered that when the basement was finished by a previous owner the paneling went up over cinderblock with NO INSULATION. That might explain why it's always so cold.
Anyway, we're ripping out the paneling and putting in an insulated sheetrock wall . The catch? Well, there's several. The Internet and the cable TV access both come in through one of the rooms that is being gutted. Thankfully I don't think it will affect the phone.
We don't get any broadcast TV so we'll be going through digital withdrawal for a while unless the contractor can figure out how to jury rig something during the renovation.

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