Listen to the sound clip Mm hmm. from Taxi - Season 2: Mm hmm. Mm hmm. This sound is from Taxi - Season 2 Taxi was a popular American sitcom that aired from 1978 to 1983. The show revolved around the lives of a group of New York City taxi drivers working for the fictional Sunshine Cab Company. With its sharp writing, relatable characters, an… Go to the full soundboardwith more sound clips Search