The Patty Duke Show

''The Patty Duke Show'' is an American television sitcom created by Sidney Sheldon and William Asher. The series ran on ABC from September 18, 1963, to April 27, 1966.

The series was developed as a vehicle for teenage star Patty Duke, who had won an Academy Award the previous year. Duke starred in dual roles of "twin cousins" Patty and Cathy Lane. The series co-starred William Schallert, Jean Byron, Paul O'Keefe, and Eddie Applegate.

A total of 104 black-and-white episodes, plus an unaired pilot, were produced by United Artists Television. ABC abruptly cancelled the series after three seasons. Provided by Wikipedia