Until episodes became available on VHS and DVD, this was one of four "lost" episodes of The Twilight Zone (1959) that were not included with syndication packages during the 1960s through the 1980s. The other three were Miniature (1963), Sounds and Silences (1964), and The Encounter (1964). This episode, "Miniature," and "Sounds and Silences" were excluded from the package because of lawsuits that had been filed claiming those episodes were plagiarized. "The Encounter" had drawn complaints of anti-Japanese prejudice and epithets expressed by one of the characters. The episodes were finally re-released for broadcast television in a 1983 special hosted by Patrick O'Neal, the lead actor of "Fountain".
The music to which Flora is dancing at the beginning is the same stock music played at the end of the episode 'Walking Distance' at the soda fountain.
Tim Matheson filmed a deleted scene of Patrick O'Neal reduced to age 12.
During the opening monologue it's stated that Harmon Gordon's wife Flora is 40 years his junior. However, Patrick O'Neal was only eight years older than Ruta Lee in real life.