<Li> This is one of several episodes from season one to have its opening title sequence plastered over with the opening for season two . This was done during the summer of 1961 in order to give the re-running episodes of season one the updated look that the show had taken in the second season . </Li> <Li> It appears that at least some of the electronics in the set were recycled from the movie Forbidden Planet, if not in absolute physicality then in imitation . The large, white lighted circles with the' pie slices' facing down appear in several scenes from Forbidden Planet (1957) as well as the previous episode of Twilight Zone, "Third from the Sun". </Li>

Twilight zone shot an arrow into the air