Doctor Who: Underworld

The Fourth Doctor and Leela arrive on the planet Minos, which is populated by beings who have genetically engineered themselves to survive a dying sun. They become embroiled in a complex power struggle between the different factions of the Minotaur race, and must navigate a dangerous labyrinth to uncover the truth behind their society's decline. As the Doctor attempts to understand the Minotaur's advanced technology, he and Leela face betrayal and deadly trials.

Underworld is often cited as one of the weaker serials of Tom Baker's era, frequently criticized for its convoluted plot, slow pacing, and unimpressive special effects, particularly the rubbery 'Shaker Beast' creatures. However, some viewers appreciate its ambitious concept and the performances of the main cast, especially Tom Baker's portrayal of the Doctor in a more contemplative role.

• Praised for its complex world-building and philosophical themes.

• Criticized for its often confusing narrative and dated special effects.

• Tom Baker's performance is generally seen as a highlight, even in a weaker story.

Google audience: Audience reviews are mixed, with some appreciating the intricate plot and the Doctor's intellectual approach to solving problems. However, many find the serial difficult to follow and are disappointed by the visual effects, which are considered below par even for the era.

The original intention for the Minotaur race was for them to be truly monstrous, but budget and time constraints led to them being depicted as humanoids with bull-like features.