Big Day, originally titled A Day in the Life, is an American sitcom that first aired on ABC from November 28, 2006 to January 30, 2007. The series was co-produced by Josh Goldsmith and Cathy Yuspa and directed by Michael Spiller for Sony Pictures Television. Originally, it was supposed to debut on October 5, 2006, along with Notes from the Underbelly, but ABC made a last-minute change in its schedule by moving Ugly Betty to Thursday, thus replacing both sitcoms whose "buzz" was not especially promising.