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.
Soap opera
The 1986 Christmas Day episode of "EastEnders" is often referred to as the highest-rated UK soap opera episode ever, with 30.15 million viewers (more than half the population at the time). The figure of 30.15 million was actually a combination of the original broadcast, which had just over 19 million viewers, and the Sunday omnibus edition with 10 million viewers. The combined 30.15 million audience figure makes the aforementioned Christmas Day 1986 episode of "EastEnders" the highest-rated single-channel broadcast in the history of UK television. Overall it ranks third behind the 1966 FIFA World Cup Final (32.3 million viewers) and Princess Diana's funeral in 1997 (32.1 million viewers) which were transmitted on both BBC One and ITV.