Part of the "Masterpiece" series, the program will be hosted by Oscar-winning actress Susan Sarandon and will include a mix of behind-the-scenes footage, interviews with creators and cast members, and video clips of favorite moments. Structured around three themes, the program will explore “The Changing World of Downton Abbey,” “The Women of Downton Abbey” and “Love and Other Relationships at Downton Abbey.” Cast members interviewed include Michelle Dockery, Hugh Bonneville, Joanne Froggatt, Elizabeth McGovern, Jim Carter, Shirley MacLaine, Sophie McShera and Laura Carmichael.
"Return to Downton Abbey" also features interviews with creator and writer Julian Fellowes, executive producer Gareth Neame and "Masterpiece" executive producer Rebecca Eaton.
The fourth season of "Downton Abbey" is scheduled to begin Jan. 5, 2014.