6.5K views · 176 reactions | 3rd Rock from the Sun Shatner and Lithgow refer to Twilight Zone's Nightmare at 20,000 feet. Both played in the Twilight Zone Episode. . William Shatner: "Nightmare at 20,000 Feet" October 11, 1963. John Lithgow: "Nightmare at 20,000 Feet") Twilight Zone: The Movie (1983) . Click Below ↓ To Watch Video. To watch full screen click on box icon, bottom right of video. | Star Trek Universe | Facebook