Double Trouble

Strong start, fades by season 2

Double Trouble is an American sitcom that aired from 1984 to 1985 on NBC. The series stars identical twins Jean and Liz Sagal as Kate and Allison Foster, two teenagers living under the watchful eye of their widowed father. The show was considered an updating of the "twins in mischief" concept seen in films like The Parent Trap or the Patty Duke Show of the 1960s.