The new agreement expands on a deal Comcast had to show CBS programs on demand. The change will give the cable company’s Xfinity On Demand and Xfinity Streampix users opportunities to watch all past seasons of The Good Wife and WB’s Charmed. Those who want to skip the ads are out of luck: Comcast disables fast-forwarding for the broadcast content. The additional showings on Streampix “will enable more fans to catch up on past episodes” while giving CBS “yet another way to monetize our content.” says Scott Koondel, the network’s Chief Corporate Content Licensing Officer. But nothing is simple in deals that involve new platforms: Some CBS shows including 2 Broke Girls, Person Of Interest, The Mentalist, and newcomers The Crazy Ones and Mom will be available on VOD and at Xfinity.com, but not via Streampix. CBS will add shows “to provide viewers more opportunities to catch up,” the companies say.