Of course it's a Tivo issue. Tivo doesn't support the 2 way communications needed for SDV channels (or Video on Demand) which is what the whole SDV issue is about with Tivo. It never had anything to do with CableCards. I suggest you go read up the sticky SDV thread to obtain a better understanding of the SDV issue. The rep was most likely comparing SDV channels to how VOD channels work when trying to explain the issue since both require 2 way communications to function (which the S3 & THD units currently can't do without the so-called forthcoming USB "tuning resolver").