A few months ago when Comcast’s repeater card for CH 3 KNTV blew out and it was basically unwatchable for days, after a lot of complaints they cut the signal completely and put up the “no signal” screen, which was a bald-faced lie. Prior to them changing it to the “no signal” screen, I had solid and specific information that it was a local hardware problem. I’m absolutely certain that “no signal” was done to reduce the complaint call volume. Form your own conclusion about the current CH 10 situation.
Comcast has an antenna up on top of the local mountain. The signal goes from there to a microwave link in Moss Beach, and from there via fiber to the head end in El Granada (which BTW Comcast thinks is in HMB.) So there are only 2 explanations for “no signal”: 1) the station isn’t transmitting (not bloody likely), or 2) there is a failure in Comcast’s Coastside equipment. There simply is no possible third choice.
Last Friday night my cable internet suddenly went totally dead. I called comcast central support, and of course got the standard answer “there’s no problem in our system, we’ll schedule someone to come out to your house.” After arguing with the guy that the problem was not at my house and couldn’t wait for regular business hours on Monday (and getting him to hang up on me!), I noticed that my TV picture was really bad on all channels including CH 6 and other non-broadcast channels. So I called comcast cable support and told them this, and they said “a node went out and we’ve dispatched someone to replace it, which will take 2-4 hours.” At the instant that the TV picture was restored, my cable internet started working.