What's the name of the episode about a man who was bet that he couldn't refrain from talking for a month. He succeeded because he had his tongue removed.

The original The Twilight Zone had an episode where the bet was to refrain from talking for a year. He had his vocal cords cut. The Silence: "The Twilight Zone" The Silence (TV Episode 1961) - IMDb (http://www.imdb.com/title/tt0734677/?ref_=ttep_ep25)

Is this the episode you are wanting?