From DOCTOR WHO.
4-part serial: Part 1 - Part 2 - Part 3 - Part 4.
First broadcast: January-February 1977.
November 17, 2013) explains why this serial is classic DOCTOR WHO but not exactly in a league with Agatha Christie (few are):
Now, the mystery . . . First of all, the whole thing doesn’t make any sense. Why would Capel try and blow up the Sandminer at the end of episode 2? It would kind of derail his Robot Revolution by killing a) them and b) himself. Putting that to one side, I think you’d have to be an idiot not to spot who Capel is.show up on the DOCTOR WHO series.
here and here.
Categories: Science fiction, Detective fiction