It’s laborious to imagine that Welcome Again, Kotter, the hit ABC sitcom that debuted on September 9, 1975, is celebrating its fiftieth anniversary this 12 months. The collection ran from 1975 to 1979 and adopted Gabe Kotter (Gabe Kaplan), a former “Sweathog” who returned to his Brooklyn highschool to show a lovable group of underachievers that included Vinnie Barbarino (John Travolta), Freddie “Increase Increase” Washington (Lawrence Hilton-Jacobs), Juan Epstein (Robert Hegyes) and Arnold Horshack (Ron Palilo). The present’s mixture of humor and touching moments made it one of the common comedies of the ’70s and launched the careers of a number of solid members — however which ones are nonetheless with us?