In 1976, Disney showed its hit 1961 film "The Parent Trap" on television for the first time, as a 2½-hour special. This marked a major step in broadcasting for the studio, which had never shown one of its more popular films on television in a time slot longer than an hour (although it had shown "Now You See Him, Now You Don't" and "Napoleon and Samantha" in a two-hour format in 1975). Walt Disney Productions also began running some of its multiepisode television programs, such as 1962's "Sammy The Way-Out Seal", as televised feature films on the anthology series. A slightly edited version of the 1954 Disney film "20,000 Leagues Under the Sea" made its television debut as a two-hour special on NBC in October 1976. Several other Disney films, some of them not especially successful (such as "Superdad", which was an outright flop in its initial theatrical release) were also aired on the program in the form of two-hour broadcasts that year. However, the multiepisode format for feature films had not been discontinued; as late as 1981, films such as "Pollyanna" were still being shown on the Disney program in several installments running a week apart.