Those are pretty low-numbered slots for channels that are usually found in higher tiers. I'm not from Rochester, but I would assume those channels would have been included in the basic cable lineup (usually just your broadcast and local access channels). Moving them to higher channels allows them to be part of the "standard" lineup, which costs more.
This could have been so TW could try to get basic customers to upgrade to standard. Or it could have been done to allow TW to avoid a rate increase on basic... as channels like TBS and AP usually cost the cable company more, and they then pass the cost along to you. Putting these channels on basic cable would obviously allow them to be seen by ALL customers, whereas channels on standard cable aren't seen by as many people. (Granted, I can't imagine this would lower the potential audience by a lot of people, but still.)