Rod Serling initially conceived the anthology series as a way to get his more political viewpoints across, behind sci-fi-themed stories. Critics loved the show, and with enduring episodes like the classic "To Serve Man," "I Sing the Body Electric," "Time Enough at Last" and "Nightmare at 20,000 Feet," 'Twilight' has inspired future generations of TV's best writers, from J.J. Abrams to Joss Whedon.

http://insidetv.aol.com/2009/08/24/best-60s-tv-shows/