April 12, 2011 5:42 pm “Welcome Back, Kotter” Cast Belts Out Theme Song John Travolta and other members of the ’70s sitcom also talk about their best memories from the show’s run. Local 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:59 Smart devices make accidental 911 calls, emergency communications centers say 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name