ADDITIONAL FORMATS DVD Grey's Anatomy: The Complete Fourth Season -- Expanded Blu-ray™ Hi-Def Enter a world of change in the irresistible and unforgettable fourth season of one of television's most acclaimed dramas. Love, lies and family ties are revealed as the surgeons of Seattle Grace discover that their choices have major unintended consequences. And coupled with the arrival of some very eager new interns, life at the hospital sizzles with more emotion, excitement and heartbreak than ever before. Get an extra dose of GREY'S ANATOMY in this comprehensive 5-disc box set, complete with never-before-seen extended episodes and exclusive bonus features that take you inside the world of your favorite doctors. From the very first minute, you'll be hooked on TV's most talked about show. Cast: Meredith Grey Ellen Pompeo Derek Shepherd Patrick Dempsey Richard Webber James T. Pickens George O'Malley T.R. Knight Cristina Yang Sandra Oh Isobel "Izzie" Stevens Katherine Heigl Miranda Bailey Chandra Wilson Alex Karev Justin Chambers Lexie Grey Chyler Leigh Callie Torres Sara Ramirez Mark Sloan Eric Dane Erica Hahn Brooke Smith   Studio: ABC Studios U.S. Rating: TV-14-DLS Bonus material not rated. Canadian Rating: 14A Approximate Run Time: 740 minutes Genre: Drama Bonus Feature(s): • Extended Episodes • Audio Commentaries • New Docs On The Block • On Set With Patrick And Eric • Good Medicine: Favorite Scenes • "Dissecting GREY'S ANATOMY": Unaired Scenes • In Stitches: Season Four Outtakes • Includes SeasonPlay And Total Menus Technical Specifications: Not All Technical Specifications Apply To All Elements • Color • 1.78:1 Aspect Ratio • English 5.1 Uncompressed (48 kHz/ 16-bit) • French, Spanish Subtitles Language(s): English UPC: 786936769401 ISBN: 0-7888-8972-9