Through the Looking Glass (Lost) series would conclude 48 episodes after "Through the Looking Glass", they felt comfortable playing flashforwards as early as the third-season finale. Post-production wrapped on May 21, 2007, only two days before it aired on television. The score was composed by series musician Michael Giacchino, while popular music was also featured throughout the episode. Charlie also sings a song in the episode that was written by Dominic Monaghan, who plays him. A "Lost" season finale is approximately twice as long the average "Lost" episode. Due to the episode's length, it was split into two parts in some countries and when released
Lost (TV series) on any network that season. The fourth-season premiere saw an increase from the previous episode to 16.1 million viewers, though by the eighth episode, viewers had decreased to a series low of 11.461 million. A survey of 20 countries by "Informa Telecoms and Media" in 2006 concluded that "Lost" was the second most popular TV show in those countries, after "". The sixth-season premiere was the first to climb in the ratings year-over-year since the second season, drawing 12.1 million viewers. Capping its successful first season, "Lost" won the Emmy Award for Outstanding Drama Series and J. J. Abrams was