The Moonbase

When the Daleks first showed up on Doctor Who, they were a cultural sensation. Without the Daleks, the show probably wouldn't have lasted this long. But the Doctor can't fight the Daleks every week. And, by this time, with a new Doctor in the TARDIS, the show's producers were desperate to find a few more iconic villains. Hence, the return of the Cybermen, only a few months after they first appeared in The Tenth Planet. Here, in The Moonbase, they've received some upgrades. Their costumes have changed, giving them more of a robotic quality. And their bizarre sing-song voices have been modified, courtesy of the Radiophonic Workshop. At times, it can be difficult to understand what they're saying, but typically their dialogue boils down to, "do what we say or we'll kill you." The Cybermen's design would change slightly with each additional appearance, a trend that has continued in the revived series. The Moonbase is also notable for containing one of the first truly iconic moments for the Second Doctor. During a tense moment, the Doctor tells his companions and the occupants of the titular base, "There are some corners of the universe which have bred the most terrible things. Things which act against everything we believe in. They must be fought." The First Doctor would have shouted such a statement to the rafters, though he probably never would have said it in the first place. The Second Doctor delivers these words with a deadly, quiet seriousness. The Second Doctor loves to goof around but when the shit hits the fan, he can be as serious as a heart attack.

Rating: There must have been a reason for that%

(Image from avclub.com)