Yesterday my household switched from Quest & Earthlink DSL to a Comcast package for phone and internet. In the process, the Cable Guy never asked for IE. Testing, the Windows computers used Firefox, and the Mac used Safari.
The Cable Guy did not know about newsgroup servers, but I later found the name of the Comcast newsgroup server address. He didn't have the full voice mail phone number, and was unable to set the TV remote to talk with my TV. He also didn't do anything about changing our outgoing e-mail to use the Comcast name and password (someone in my household needed to use a provided Comcast e-mail address, which we won't use for anything else).
One of my newsgroups was not to be found, although I just noticed that Giganews says they have it. I'll have to play with that.