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No. It doesn't work that way. The modem talks to a T.O.D. (Time Of Day) server.
Yes. You are worried about nothing. This will not affect anything.
Modems default to that 1970 date when for whatever reason they temporarily lose contact with the TOD server. This can happen after a deliberate powercycle operation as well. It eventually re-handshakes with the server.
Use this tool to find the codes of your devices and to get specific instructions on programming the codes into your Comcast remote.
Alerts are an easy, quick way to manage your account and get information - like payment confirmations and your current balance.
Find everything you need to know about setting up your wireless gateway.
Get details on weather, traffic, sports and more all from your XFINITY TV on the X1 Platform Dashboard.