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
The Charlie Drake Show the first episode a stunt involving Drake went wrong and he fractured his skull and remained unconscious for three days. The episode went off the air when the crew realised what had happened. The unmade second and third episodes of that series were due to be called "Of Mouse and Man" and "French with Tears". Due to the policies of the time, the entire first series is missing and presumed lost. The first, third and sixth episodes of the second series are also missing. A few months after his accident, Charlie Drake announced his retirement whilst accepting the TV Comedian