The show, which debuted on September 14, 2009, is co-produced by Oprah Winfrey's Harpo Productions and distributed by Sony Pictures Television Distribution, is the second Oprah spin-off series featuring a regular guest (Dr. Phil being the first), and marks the first time that Winfrey's company has partnered with another studio outside of the current CBS Television Distribution, which co-produces her series as well as her other series (assumed to be because The Dr. Oz Show is in direct competition with the Dr. Phil spinoff The Doctors, which CBS distributes). For the first four seasons, shows were taped in Studio 6A at NBC Studios in New York,[4] but vacated Rockefeller Center after NBC reclaimed the space for its Late Night franchise.[5] Beginning with season five, Dr. Oz originates from ABC Television Center East on the Upper West Side of Manhattan.[6]