Question: What was the final thing shown on the network which broadcast The Mysti Show before it was shut down for the war?

full_context: Document 1: STORYFix: STORYFix is a television programme on United Kingdom news channel BBC News. Broadcast between May 2006 and July 2007, it was notable for presenting an alternative view of the week's news. In July 2006 it also became one of the BBC's first video podcasts.
Document 2: BBC Television: After a series of test transmissions and special broadcasts that began in August, regular BBC television broadcasts officially resumed on 1 October 1936, from a converted wing of Alexandra Palace in London, which housed two studios, various scenery stores, make-up areas, dressing rooms, offices, and the transmitter itself, now broadcasting on the VHF band. BBC television initially used two systems, on alternate weeks: the 240-line Baird intermediate film system and the 405-line Marconi-EMI system, each making the BBC the world's first regular high-definition television service, broadcasting Monday to Saturday from 15:00 to 16:00 and 21:00 to 22:00.
Document 3: I Dream: The lead production company was 19 Television, a subsidiary of the corporation 19 Management, which is owned by the show's executive producer, Simon Fuller. The first episode of "I Dream" aired on Wednesday 22 September 2004 on BBC One. From the week of 23 November episodes were aired on Thursday instead of Wednesday, and the thirteenth and final episode aired on 16 December and featured Laila Rouass. Reruns of the show in the UK were broadcast on the CBBC Channel.
Document 4: BBC Television: Mechanically scanned, 30-line television broadcasts by John Logie Baird began in 1929, using the BBC transmitter in London, and by 1930 a regular schedule of programmes was transmitted from the BBC antenna in Brookmans Park. Television production was switched from Baird's company to what is now known as BBC One on 2 August 1932, and continued until September 1935. Regularly scheduled electronically scanned television began from Alexandra Palace in London on 2 November 1936, to just a few hundred viewers in the immediate area. The first programme broadcast – and thus the first ever, on a dedicated TV channel – was "Opening of the BBC Television Service" at 15:00. The first major outside broadcast was the coronation of King George VI and Queen Elizabeth in May 1937. The service was reaching an estimated 25,000–40,000 homes before the outbreak of World War II which caused the service to be suspended in September 1939. The VHF broadcasts would have provided an ideal radio beacon for German bombers homing in on London, and the engineers and technicians of the service would be needed for the war effort, in particular the radar programme.
Document 5: Lizzie McGuire: The series was created by Terri Minsky. The show's working title was "What's Lizzie Thinking?" before being changed to "Lizzie McGuire". The show's producer Stan Rogow says the visual look of the show was partly inspired by the film "Run Lola Run." The pilot was filmed in March 2000, and after the show was picked up, production of the episodes restarted in September 2000. Though production wrapped in June 2002, the show did not end its original run on Disney Channel until 2004. In 2014, Hilary Duff announced that she would be open to a "Lizzie McGuire" reunion.
Document 6: Tiswas: Tiswas (""Today Is Saturday Watch And Smile"") is a children's British television series that originally aired on Saturday mornings from 5 January 1974 to 3 April 1982 and was produced for the ITV network by ATV Network Limited.
Document 7: The Mysti Show: The Mysti Show is a British children's television programme, produced by "Mystical Productions" for the BBC in 2004-2005. It initially took the format of an hour-long programme combining magazine and narrative elements, but was subsequently reformed into a series of 20-minute, all-narrative programmes.
Document 8: BBC Television: After a series of test transmissions and special broadcasts that began in August 1936, the BBC Television Service officially launched on 2 November 1936 from a converted wing of Alexandra Palace in London. ``Ally Pally ''housed two studios, various scenery stores, make - up areas, dressing rooms, offices, and the transmitter itself, which then broadcast on the VHF band. BBC television initially used two systems on alternate weeks: the 240 - line Baird intermediate film system and the 405 - line Marconi - EMI system. The use of both formats made the BBC's service the world's first regular high - definition television service; it broadcast from Monday to Saturday between 15: 00 and 16: 00, and 21: 00 and 22: 00. The first programme broadcast -- and thus the first ever, on a dedicated TV channel -- was`` Opening of the BBC Television Service'' at 15: 00. The first major outside broadcast was the coronation of King George VI and Queen Elizabeth in May 1937.
Document 9: BBC Television: The BBC began its own regular television programming from the basement of Broadcasting House, London, on 22 August 1932. The studio moved to larger quarters in 16 Portland Place, London, in February 1934, and continued broadcasting the 30-line images, carried by telephone line to the medium wave transmitter at Brookmans Park, until 11 September 1935, by which time advances in all-electronic television systems made the electromechanical broadcasts obsolete.
Document 10: BBC Television: As a division within the BBC, Television was formerly known as BBC Vision for a few years in the early 21st century, until its name reverted to Television in 2013. It is responsible for the commissioning, producing, scheduling and broadcasting of all programming on the BBC's television channels, and is led by Danny Cohen.
Document 11: BBC Television: Baird Television Ltd. made Britain's first television broadcast, on 30 September 1929 from its studio in Long Acre, London, via the BBC's London transmitter, using the electromechanical system pioneered by John Logie Baird. This system used a vertically-scanned image of 30 lines – just enough resolution for a close-up of one person, and with a bandwidth low enough to use existing radio transmitters. Simultaneous transmission of sound and picture was achieved on 30 March 1930, by using the BBC's new twin transmitter at Brookmans Park. By late 1930, 30 minutes of morning programmes were broadcast Monday to Friday, and 30 minutes at midnight on Tuesdays and Fridays, after BBC radio went off the air. Baird broadcasts via the BBC continued until June 1932.
Document 12: The Culture Show: The Culture Show is a weekly BBC Two arts magazine programme, focusing on the best of the week's arts and culture news, covering books, art, film, architecture, music, visual fashion and the performing arts. The show was broadcast between 2004 and 2015.
Document 13: BBC Television: The two systems were to run on a trial basis for six months; early television sets supported both resolutions. However, the Baird system, which used a mechanical camera for filmed programming and Farnsworth image dissector cameras for live programming, proved too cumbersome and visually inferior, and ended with closedown (at 22:00) on Saturday 13 February 1937.
Document 14: BBC Television: On 1 September 1939, two days before Britain declared war on Germany, the station was taken off air with little warning; the government was concerned that the VHF transmissions would act as a beacon to enemy aircraft homing in on London. Also, many of the television service's technical staff and engineers would be needed for the war effort, in particular on the radar programme. The last programme transmitted was a Mickey Mouse cartoon, Mickey's Gala Premier (1933), which was followed by test transmissions; this account refuted the popular memory according to which broadcasting was suspended before the end of the cartoon.
Document 15: Y?: Y? was an educational children's science program shown on the Nine Network in Australia. It was produced by Southern Star Endemol between 1999 and 2002. Each episode ran for 22 minutes. A total of five seasons were recorded. Each season was 65 episodes long.
ground_truth: Mickey's Gala Premier
sub_queries: What network broadcast The Mysti Show? Answer: BBC
What was the final thing shown on the BBC before it was shut down for the war? Answer: Mickey's Gala Premier