Showtime is about to start a new promotion for new subscribers. According to News.com:

Showtime will throughout the summer give away games for Microsoft's Xbox video game console to its new subscribers, the cable movie operator said on Tuesday. Showtime, a unit of Viacom, said people who sign up during the promotional period will get either two free Xbox games or one game and a starter kit with 12-month subscription to the Xbox Live online gaming service.

I haven't found a firm date on when the promotion starts but we'll keep you posted.