EastEnders
"EastEnders" is often filmed on location, away from the studios in Borehamwood. Sometimes an entire quartet is filmed on location, which has a practical function and are the result of "EastEnders" making a "double bank", when an extra week's worth of episodes are recorded at the same time as the regular schedule, enabling the production of the programme to stop for a two-week break at Christmas. These episodes often air in late June or early July and again in late October or early November. The first time this happened was in December 1985 when Pauline (Wendy Richard) and Arthur Fowler (Bill Treacher) travelled to the Southend-on-Sea to find their son Mark, who had run away from home. In 1986, "EastEnders" filmed overseas for the first time, in Venice, and this was also the first time it was not filmed on videotape, as a union rule at the time prevented producers taking a video crew abroad and a film crew had to be used instead. In 2011, it was reported that eight per cent of the series is filmed on location.
EastEnders Live
On 15 September 2009, the BBC announced plans to broadcast the first ever live episode of "EastEnders", to celebrate the show's 25th anniversary. The air date was set for 19 February 2010, with the episode to be broadcast from the BBC's Elstree Studios in Borehamwood. "EastEnders" executive producer Diederick Santer initially refrained from discussing the episode's plot, but commented that it would resolve a "big storyline" which would "keep the audience (as well as the cast and crew) guessing until the very last moment." "EastEnders" storylines saw Archie Mitchell, landlord of The Queen Victoria public house murdered on Christmas Day 2009, with many characters considered potential suspects in the crime. Santer confirmed that the killer would be revealed in the live episode, and that their identity would be kept secret until the night of broadcast, even from the cast member playing them. Another aspect of the episode is the remarriage of characters Bianca Jackson (Patsy Palmer) and Ricky Butcher (Sid Owen). Santer deemed it the "soap wedding of the year—and perhaps the soap wedding of the decade", commenting that playing the romance against the "thriller" of the "whodunnit" storyline provided a balance he hoped audiences would be "gripped by and satisfied with."