Pat Morita, who starred in the “Karate Kid” movies and in such TV shows as “Happy Days,” died yesterday of natural causes in Las Vegas. He was 73.

He rose to fame as diner owner Arnold on “Happy Days” during the 1975-76 season. But he’s probably best remember as the wise Karate teacher Mr. Miyagi in four “Karate Kid” movies, dispensing such immortal advice as “wax on, wax off.” He earned an Oscar nomination for the first “Karate Kid” movie in 1984.