Listen to the sound clip TOS chirp from Star Trek TOS (The Original Series) Sounds: TOS chirp TOS chirp This sound is from Star Trek TOS (The Original Series) Sounds The series originally aired from September 1966 through June 1969 on NBC. This is the first television series in the Star Trek franchise. The episodes are listed in order by original air date, which match the episode order in each season'… Go to the full soundboardwith more sound clips Search