About three weeks ago, I called and asked about upgrading my account so I could get the Military History Channel. Oh, they were happy to do so, though I had to sign up for premium service with a lot more channels, that was supposed to make my Internet run faster as well. And they would mail me a guide to all the new channels I was getting as soon as the upgrade--48 hours tops--went through.
So far, no guide came, no new channels appear when I surf on the TV and the Internet doesn't run any faster as far as I can tell, though I unpluged my modem for 30-minutes as directed a week later. But I bet they upgraded the amount they are charging me, at least.
How does Comcast stay in business? Oh, yeah, they are a monopoly.