One season with 4 time-travel episodes.
I reminded them that Adolph Hitler was responsible for the deaths of 60 million people.

Variants

(1)
  1. The Twilight Zone by Rod Serling (2 October 2002).
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Rod Serling