Clear the calendar: Free Showtime weekend begins tomorrow

Clear your calendar and clean out the DVR: we're all getting free Showtime this weekend!

And by "we," I mean everyone with a digital subscription to Time Warner Cable, DirecTV, AT&T U-verse and Dish Network. The promotion runs Friday, January 11 through Sunday, January 13, and coincides with the Sunday season premieres of Showtime series "Shameless," "House of Lies" and "Californication." (For movie fans, "Twilight: Breaking Dawn Part I" and "Iron Lady" with Meryl Streep also debut on the channel this weekend, and there's a slew of slightly older movies like "My Week with Marilyn," "50/50" and "The Help.")

It's also a great chance to watch as much "Dexter," "Homeland," "Nurse Jackie," "Episodes," "Weeds" and "The Big C" as you possibly can on Showtime On Demand. You can't record On Demand shows to watch later, so that means you may have to pull some all-nighters. You can also install and use the Showtime Anytime app, which you can use on iPad, iPhone, Android or a computer.

Of course, Showtime is hoping you'll like what you see enough to subscribe. For more information on the free preview weekend, go to Showtime's website.