public service announcement (PSA) for the Social Security Administration, in which Patty asked Cathy about where she got her information about how to get Social Security benefits and other questions, such as how to apply online. The PSA was targeted toward baby boomers who were born or who grew up in the 1960s. In 2010, the surviving cast reprised their respective roles in a series of PSAs, again for the Social Security Administration. DVD releases Shout! Factory has released all three seasons of The Patty Duke Show on DVD in Region 1. See also: similar shows and films The Parent Trap (1961 film starring Hayley Mills, remade in 1998 with Lindsay Lohan) — a film that where Mills, and later Lohan, also played double roles Liv and Maddie — Disney Channel sitcom starring Dove Cameron as twins. Duke made her final acting appearance in a season three episode playing the title characters' grandmother and great-aunt References External links Season 1 DVD review and production notes 1963 American television series debuts 1966 American television series endings 1960s American sitcoms American Broadcasting Company original programming American teen sitcoms Black-and-white American television shows Brooklyn in fiction English-language television shows Television series about cousins Television series about teenagers Television series by United Artists Television Television series by MGM Television Television series created by Sidney Sheldon Television shows filmed in New York City Television shows set in Brooklyn