Moderator note: Another member has pointed out that the regular cost of Showtime is $10.99 per month, therefore this deal exceeds the $10 limit for this category and should be posted in Hot Deals.
However, Showtime has offered free 7 day trials to all new customers for quite some time, so as a practical matter, this deal is not so much a free month as an additional three free weeks, with an approximate savings of $8.24. So it turns out that Free Stuff is the correct forum.