Doctor Who's Cyberman episodes often have several recognizable hallmarks, and "The Robot Revolution" boasts a suspicious ...

Aided by his two assistants Jamie and Victoria, the Doctor lands the TARDIS on Telos, last resting place of the infamous Cybermen ... they find the icy tomb. A whole army in hibernation.

The same location was used for Telos when filming took place almost twenty years later for Attack of the Cybermen. Missing from the BBC archives for many years, all four episodes of The Tomb of ...

Until Torchwood, that is. A Cybercontroller, recognisable by its larger than normal cranium, also featured in the stories The Tomb Of The Cybermen (1967) and Attack Of The Cybermen (1985).