I'm sure that there are adult movies somewhere in the Xfinity On First press guide and enter channel 545 just want you know that one option.
Add the Adult package if you want. However, if you want all Comcast channels this is a must. This package includes several Playboy networks and the Spice.
We have no Adult on Demand on our system, and I can't find the Playboy category in ANY of the regular on demand menu's off of channel 1.