When did the TV series which showed the episode Nepotism start on NBC ? 
Nepotism (The Office): "Nepotism" is the seventh season premiere of the American comedy television series "The Office" and the show's 127th episode overall. The Office (U.S. TV series): The Office is an American television comedy series that aired on NBC from March 24, 2005, to May 16, 2013.
March 24, 2005,