Years later, they decide to remake the Twilight Zone movie, and John Lithgow plays the Shatner character. He sees a gremlin on the wing while in flight, and zaniness ensues.
Even later Lithgow plays the head of a group of aliens on earth in 3rd Rock from the Sun, a silly sitcom. They are posing as teh Solomon family as a disguise. They report to a not seen boss, the Big Giant Head. Head comes to visit earth, and is played by Bill Shatner. They meet him at the airport, and when asking how his flight was...
The Solomons first meet the Big Giant Head in person when he arrived by plane at their local airport, in an obviously agitated state. When asked about his flight, he responded "Horrifying, at first. I looked out the window and ... I saw something on the wing of the plane", to which Dick responded "The same thing happened to meeee!"
And bless their hearts, they did not linger on it or even explain it. You either got the gag or you didn't.
One of my all time favorite TV moments.