The estate has been the home of the BBC's Engineering Training Department since the war, now branded as part of the College of Technology, a constituent of the wider BBC Academy. Training staff run residential courses on-site, travel to deliver courses at other sites in the UK, and design interactive courses for use on the BBC's internal network. Because of its convenience as a BBC facility, Wood Norton was used for some of the filming of the 1970
Doctor Who serial
Spearhead from Space. The production team used the site due to a BBC strike which prevented them from recording on videotape in studio, hence why it is the only serial from
Doctor Who's 1963-89 run to be shot entirely on film as opposed to the more usual combination of both film and
videotape. The filming included location shots inside the secret nuclear bunker (the scenes of Brigadier Lethbridge-Stewart's office and The Doctor's laboratory), and all those who were involved with filming in those areas were required to abide by the Official Secrets Act and disclose no information about the bunker's existence. Wood Norton was later used for all of the location filming of the 1974 serial
Robot, though on that occasion permission to use the bunker for filming was refused. In 1979 part of the BBC's adaptation of the final episode of
John le Carré's "
Tinker Tailor Soldier Spy" was shot there. The medical centre and old student's accommodation were used to represent a holding cell for Bill Haydon "Tailor" (
Ian Richardson) at Sarratt whilst he was being interrogated by the inquisitors. Little set dressing was required as, at the time of shooting, the student accommodation in D Block was rather like a prison cell. Under the leadership of
Greg Dyke and Resources director Mike Southgate, the BBC sold off the residential accommodation used by trainees, which had been built by the corporation 20 years previously. Wood Norton Hall itself was a privately owned hotel and conference centre, but closed in 2005, reopening under new management the following year. The hotel finally ceased trading in 2010, was sold to a London investor in 2011, underwent a £4m renovation and reopened in November 2012 as a member of the Bespoke Hotels Group, however it is no longer affiliated with the group. The BBC retains its Technical and Operational Training Centre in the extensive grounds. ==Notes==