Right now the Itunes store has a lot of free tv show content in their free section. Most of it's just two minute recaps of the previous season or a preview for next season. But, I noticed that when you click on the free content page for Lie to Me, Castle, and Dollhouse, in addition to the free short video, the season pass for the new season is listed as free. If you're interested in any of those shows it's worht a shot to click on the Buy Season pass button and see what happens. I won't know for sure if you get the whole season for free by doing this until new episodes start to air, but by the time they do I'm sure the option to get the season pass for free will be over too.