Meglos

In an underground city, the people of Tigella's lives are controlled by a mysterious object called the Dodecahedron. The scientific-minded people of Tigella, called the Savants, struggle to harness the power emitted from the Dodecahedron, while the other half of the population, the Deons, worship the Dodecahedron as if it were a gift from the gods. Meanwhile, on the desolate planet of Zolfa-Thura, a shape-shifting creature called Meglos schemes to steal the Dodecahedron for its own purposes. Meglos is a decent serial that never quite crosses the line into excellence. All the elements are there: good cast, good themes, great settings. And yet, it ends up being fairly average. Most of the episodes are shorter than normal, which keeps the pacing tight but leaves the impression that there just wasn't enough material in the script. Jacqueline Hill, who played Barbara during the First Doctor era, plays Lexa, the fanatical leader of the Deons who ultimately sacrifices her own life to save Romana.

Rating: You never know who's who%