Well, it turned out that the second TiVo was an "additional outlet" even though they're both running off the same wall outlet and the same TV. But Dan happily reduced the second card in each device to $1.50, so my two TiVos are now costing me $0.00 + $1.50 + $5.00 + $1.50. I think what happened was, when we originally got our S3's in 11/2006, they didn't really have a standard way to price them. Comcast in this area told us the first card was free, and then cards 2-4 always showed up on the bill as "Cablecard A/O $2.75". I'm guessing around the first of the year they standardized how they were billing stuff and the "A/O" part got our cards classified as all being additional outlets rather than cards in the same devices.