I finally reached a live human being tonight after sitting on hold for about 15 minutes. Here's a summary of our conversation:

The $140.47 was for the period 9/29 - 11/10, or 41 days. It's $99 monthly, plus part of a month, resulting in $140.47.

The $99 one time charge was broken down into two pieces. $59.85 and $39.15. I was told it was because two technicians came to do the install. I explained the whole story about the mixup with the times, etc, so she removed the $39.15 off the bill. I wish it had been the $59.85, but beggars can't be choosers. She also explained to me that when the technician installed everything, the workorders that I signed should have had the installation charges listed on them. I told her I didn't remember seeing any charges printed on them, the technician didn't point them out, and of course, I didn't read the workorders that closely. I didn't even think there'd be monetary charges listed there. I was too rushed to get to work so I didn't have to take more than a half a day vacation. She also told me that the amounts I was charged were also reduced amounts. Normally, the charges for installing the internet and voice is $99 EACH, and the tv is $44.95. So I still got a deal even when charged $99 total! Then I asked her, politely of course, why I would be charged an installation fee when THEY bought my cable company and THEY had to come out to hook up their own cable connections. She advised me that Comcast doesn't see us as TVMax customers, only as "new" customers to Comcast. So we're all being charged installation charges for whatever we're being suckered into buying.

Then I asked her about my TVMax bill. I just paid it when the Comcast guy came and switched everything over, and it was for the period of 9/17 to 10/16. I only used 10 days of the 30 days I paid for in advance. Was I going to get a refund for the 20 days I didn't have TVMax service? Apparently, there's a third party that's working on all that, to go through all the TVMax accounts and probably figure out what people are owed for pre-paid service that switched to Comcast in the middle. I have the number, and I might try to call tomorrow.

As it stands now, I still have my Comcast service, and I just need to cancel all my phone services now.