The season premiered on February 2, 2010, with a double-length episode (two hours including commercials) preceded by a one-hour clip show, entitled "Lost: Final Chapter". The show continued from February 9 at its new timeslot of Tuesdays at 9 pm, with a total of 18 episodes airing in 16 broadcasts, ending with a two and a half hour, two-part series finale, the latter part of which aired Sunday, May 23, 2010. Additionally, the first hour of the premiere episode was screened to an estimated 15,000 fans on Waikiki Beach on January 30. In the following table, "Series #" refers to the episode's number in the overall series, whereas "Season #" refers to the episode's number in this particular season. "U.S. viewers in millions" refers to the number of Americans in millions who watched the episodes live or recorded them and watched them within seven days of broadcast.