Logopolis by Christopher H Bidmead - The Doctor and Adric head to Earth to fix the ARDIS' chameleon circuit, hoping to restore the time machine's ability to blend into its surroundings.But once there they face danger involving a newly regenerated Master and a feisty young air hostess called Tegan Jovanka. How can the people of the distant and mysterious planet Logopolis help? And just who is the strange, ghostly figure watching the Doctor's every move...?

The middle story in the trilogy featuring the Master Logopolis had the difficult job of bringing Tom Baker's successful seven-year reign as the Doctor to an end-but the moment had been prepared for... New producer John Nathan-Turner had already made many changes to Doctor Who: the title sequence and theme music had been updated; the lead characters of Romana and K-9 were written out; and the scripts, under the watchful eye of script editor Christopher H Bidmead, became more serious than they had been in previous years. But the biggest change of all came at the end of Logopolis with the regeneration of the Fourth Doctor. A new line-up of regulars was introduced over the course of the story to help the Doctor and the audience through the big change. Australian actress Janet Fielding made her debut as the argumentative air hostess Tegan Jovanka, and Sarah Sutton's softer character, Nyssa, who had appeared in the previous story The Keeper of Traken, was written into Logopolis after John Nathan-Turner saw further potential in the character. Another semi-regular, who went on to make several reappearances over the following nine years, was the new Master, played by Anthony Ainley. The Master's appearance wasn't revealed until the third episode, so that viewers might think that the mysterious Watcher might have been the renegade Time Lord. The final story of the 18th season, Logopolis was all about change. And a new era with Peter Davison, the youngest actor to take on the role, was about to begin.

Commentary by Tom Baker [the Doctor], Janet Fielding (Tegan Jovanka] and Christopher H Bidmead (writer]. A New Body at Last - A 50-minute documentary looking at the transition from Tom Baker to Peter Davison, featuring many of the actors and production team involved, including exclusive behind-the-scenes footage of the regeneration. Nationwide Interviews from the BBC Special news magazine show with Tom Baker and Peter Davison. Pebble Mill at One - Peter Davison
interviewed on the long-running BBC lunchtime show. BBC News Reports on Tom Baker's features
wedding, the announcement of Tom Baker's departure and Peter Davison's arrival. Music-only
Option. The original score for this story is included on a separate soundtrack. Trailers & Continuity
Announcements. Radio Times Billings Articles and listings from Radio Times (PDF DVD-ROM]. The Doctor Who Annual 1982 (PDF DVD-ROM] BBC Enterprises literature (PDF DVD-ROM]. Photo Gallery. Production Subtitles Digitally remastered picture and sound quality.

Commentary by Tom Baker, Janet Fielding and Christopher H Bidmead. Tom Baker became the Fourth Doctor in 1974, and stayed in the role for a record-breaking seven years, during which time the series reached new levels of public popularity and cemented its place in the BBC's much vaunted 1970's Saturday night schedule. After leaving Doctor Who, Tom Baker appeared as Sherlock Holmes in The Hound of the Baskervilles, and featured in such productions as The Life and Loves of a She-Devil, Medics, Randall&Hopkirk [Deceased] and Monarch of the Glen. He was also the voice of ZeeBad in the film version of The Magic Roundabout and narrates the hit BBC comedy series Little Britain. Janet Fielding joined Doctor Who as forthright Australian air hostess Tegan Jovanka during Tom Baker's final story in 1981. She stayed with the series for another three years, outlasting all the other companions who travelled with Peter Davison's Fifth Doctor, until her departure in Resurrection of the Daleks (1984]. Other TV work has included appearances in Shelley and Minder, but Janet now concentrates more on her work away from the cameras. Christopher Hamilton Bidmead began his TV career as an actor, but moved onto scriptwriting in the early 1970s. He then moved into scientific journalism, before he was recommended to the Doctor Who production office as a possible replacement for Douglas Adams as the series'script editor. He took on the role for the show's eighteenth season at the end of 1979, and although only in the job for little over a year,he was instrumental in re-shaping the direction of the series, and bringing Doctor Who into the 1980s. He wrote three Doctor Who stories-Logopolis 1981), Castrovalva [1982] and Frontios [1984]. After leaving the show, he has resumed his successful career in scientific journalism. A New Body at Last - A new 50-minute documentary with cast and crew discussing the transition from Tom Baker to Peter Davison, including exclusive behind-the-scenes footage of the
regeneration. Featuring actors Tom Baker, Peter Davison, Matthew Waterhouse, Sarah Sutton and Adrian Gibbs, script editor Christopher H Bidmead, and directors Peter Moffatt and John Black.

Nationwide interviews from the BBC news magazine show with Tom Baker on leaving and Peter
Davison on joining. Pebble Mill at One- Peter Davison interviewed on the long-running BBC lunchtime show. BBC News A selection of BBC News items, including reports on Tom Baker and Lalia Ward's wedding. The announcement of Tom Baker's departure and Peter Davison's arrival.
Music-only Option - Listen to Paddy Kingsland's haunting soundtrack from the story as a music-only option. Continuity Announcements - A selection of off-air continuity announcements from both the original BBC transmission of this story. The Doctor Who Annual 1982 - Presented on this DVD in its entirety, this rare annual from 1982 is reproduced here [DVD-ROM only-to be viewed on PC/Mac].
Radio Times Billings - Illustrations, articles and listings for this story from the BBC listings magazine Radio Times[DVD-ROM only-to be viewed on PC/Mac]. BBC Enterprises Literature - Selected literature produced by BBC Enterprises to promote Season 18 is available to view. DVD-ROM only-to be viewed on PC/Mac]. Production Subtitles - subtitles provide the viewer with cast details, script development and other information related to the production of Logopolis. This gives the viewer further insight into the making of this adventure. Photo Gallery - A selection of rare and previously unpublished photographs from the recording of Logopolis are included.