address of Grey's home is 613 Harper Lane, but this is not an actual address. The physical house is located at 303 W. Comstock St., on Queen Anne, Seattle, Washington. Most scenes are taped at The Prospect Studios in Los Feliz, just east of Hollywood, where the Grey's Anatomy set occupies 6 sound stages. Some outside scenes are filmed at the Warren G. Magnuson Park in Seattle. Several props used are working medical equipment, including the MRI machine. When asked about operating room scenes, Sarah Drew said: Costumes are used to differentiate between attending surgeons, who wear navy blue scrubs, and residents, who wear light blue scrubs. The series is filmed with a single-camera setup, as are many dramas. Grey's Anatomy is often filmed using the "walk-and-talk" filming technique, popularized on television by series such as St. Elsewhere, ER, and The West Wing. Broadcast history Grey's Anatomy first season commenced airing as a mid-season replacement to Boston Legal on March 27, 2005, and concluded on May 22, 2005. The 9-episode season aired on Sundays in the 10:00pm EST time slot, following Desperate Housewives. The show was renewed by ABC for a second season, that aired in the same time slot as season 1. Premiering on September 25, 2005, and concluding on May 15, 2006, the season consisted of 27 episodes. As the original first season order was for 13 episodes, 5 episodes were held for season 2, as ABC decided to close the first season of Grey's Anatomy on the same night as Desperate Housewives finale. During season 2, Grey's Anatomy produced 2 specials recapping the events of recent episodes, narrated by Bailey, entitled "Straight to the Heart" and "Under Pressure". The show was renewed for a third season, which was relocated to the coveted Thursday 9:00 pm EST time slot. The show has remained on Thursdays since then. Commencing on September 21, 2006, and ending on May 17, 2007, season 3 consisted of 25 episodes. 2 more specials were produced during the show's third season, entitled "Complications of the Heart" and "Every Moment Counts", which were narrated by Bailey and Morgan, respectively. ABC renewed Grey's Anatomy for a fourth season, which aired from September 27, 2007, to May 22, 2008, and ultimately consisted of 17 episodes. Season 4 had a reduced number of episodes, due to the 2007–08 Writers Guild of America strike, which caused production to cease from