Jacqueline Stander, an agent for Palillo, told NBC News that the actor had a heart attack and passed away in his sleep. Palillo was inextricably linked with the character he played from 1975 to 1979 ...

Which classic '70s sitcom, one that launched the career of a Hollywood superstar and dropped several memorable characters and catchphrases into TV history, is being released as a complete series DVD ...

You may not personally remember high school the way it was presented in the ABC sitcom Welcome Back Kotter, but from 1976 to 1979 the comic interactions between teacher Gabe Kotter (played by Gabe ...

Actor Ron Palillo, best known as the adorably irritating Arnold Horshack from the 1970s sitcom “Welcome Back Kotter,” died yesterday in Florida, marking the second “Sweathog” to pass away this year.

Ron Palillo, best known as mouthy classroom goofball Arnold Horshack on the 1970s TV series “Welcome Back, Kotter,” died Aug. 14 at his home in Palm Beach Gardens, Fla. He was 63. He died after an ...

That “Ooh! Ooh ooh!” That Horshack laugh. When Ron Palillo died Tuesday morning at his home in Palm Beach Gardens, Fla., another little nugget of ‘70s pop culture died with him. Palillo, best known ...

His "ooh, ooh, ooh, Mr. Kotter!" is a classic line from a classic '70s show. Palillo was 63. "Ooh, Ooh, Ooh, Mr. Kotter!" If you watched TV in the '70s, you probably recognize that line. So it's with ...