As a follow up from the previous post, the first episode of The Pacific is being streamed online for free on hbo.com. You just have to register for the site to access Part I.
Also, Showtime will have a free preview weekend March 25-28. During that weekend, you can catch the season premieres of Nurse Jackie and the Emmy-winning, Steven Spielberg-produced The United States of Tara (Toni Collette beat Tina Fey for Lead Actress last year).
Spielberg gets around, doesn't he?