Comcast digital cable converter box

I'm in the same boat as the original poster...i moved into my apartment a few months back, plugged the cables that were already here into my TV and managed to have free cable. I recently lost most of my channels and was told that i have to get a converter box from Comcast. If I do that, Comcast will realize that I've been getting free cable and they'll start charging me a ton of money. When i last spoke to Comcast, I found out that they were under the impression that the cable to my apartment was cancelled in 2008...I didn't correct cuz I dont want to have to start paying

If I buy a converter box on ebay, can I just plug the cable into it and expect to have my channels back? If so, what kind of box do i need to get?

Alternatively, could I ask my neighbor (who has an account with Comcast) to tell Comcast that he bought an additional TV for his room and needs a converter box, then use that converter box in my apartment?

And does Comcast sell cable boxes to non-subscribers?? Would that even make sense/work?? I;m not good with this kinda stuff, but I was thinking I could call Comcast, claim that I get my cable from another company, and see if they would sell me a converter box.

Any advice would be greatly appreciated

You are really trying to get sued or have some nasty visits by Comcast. Deal with what you have or order their service. I'm hoping your neighbor is not stupid enough to get a converted and give it to you.