The Man From U.N.C.L.E. (1964)

Plot hole: Solo blows open the ceiling vent of Illya and Marion's cell, and she stands on Illya's shoulders until Solo can reach her and pull her out. This leaves Illya with nothing/no one to stand on, no way to reach the vent and no apparent way out of the cell. But he's out just the same in the next scene, with no explanation as to how.

Factual error: Ole and all the Thrush baddies call the missing chemical component a "catalyzer," repeating the term throughout the episode. This was a scriptwriter's error, which only David McCallum, to his credit, corrected: he had Illya say "catalyst," which is what the writer meant. "Catalyzer" isn't a word.

Other: Solo seems to forget just who called whom when he calls Illya on the communicator. After Illya picks up, Solo answers as though Illya had called him instead.

Four of the guests at Marion's party are played by U.N.C.L.E. production staff in cameo roles. Creator-producer Norman Felton is the man playing chess, producer Sam Rolfe is the dancing Texan, associate producer/writer Joseph Calvelli is the writer typing at the coffee table, and director Richard Donner is the drunk in the extremely loud sport coat.

"The Man From U.N.C.L.E.'s" original working title was "Solo," and its lead character was named for a spy with a minor role in one of Ian Fleming's early Bond novels. U.N.C.L.E. producer Norman Felton had a handshake agreement with Fleming to use the name and to develop "Solo" as a TV spy series. But the Bond film franchise had other ideas, reneged on the agreement on Fleming's behalf, and sued, forcing the title change. Felton prevailed only in retaining the character's name: Napoleon Solo.

This episode, shot in 1964, featured guest stars William Shatner and Leonard Nimoy. It marked the first time the future Captain Kirk and Mr. Spock ever appeared on screen together.