TV is unable to sense Comcast connectivity.

When I press my remote on/off button, my TV comes on but with no sign of connectivity with my Comcast provided cable box.  The only programming accessible is that which is built into my smart TV, which is not what I am paying Comcast to provide.  The input choices that I can select using the remote that would appear to link to the cable box both resulted in my TV displaying a message saying that no input was detected.  Another TV in my home with a similar setup (different box) works fine.  

On December 4, 2023 I reported the same issue on the same TV and cable box.  Comcast could not resolve in real time.  On December 5, 2023 a Comcast technician came to my home seemed to play a bit with the line connecting my TV to the cable box, and all was corrected.  I was charged $100.00 for this visit.  Following Comcast's instructions, I have verified that the cable box and TV are both on and there appears to be a secure connection between the two.

I tried to look at my TV subscriptions on line on my home computer on the Comcast website, but find that most of the links provided are dead internet connections.  I issued a trouble report using the new X1 app from my phone and the app indicated that a trouble investigation was going to be conducted by Comcast.  It also told me that if Comcast technicians could not resolve the issue remotely, that I would need to schedule a visit by a Comcast technician.