Dragon Ball Z Episode 52: The Past and the Future
Episode 52 of 291 of Dragon Ball Z, aired June 20, 1990, 25 minutes. Available with English subtitles and dub where released.
Episode summary
On Kai's World, Tien, Chiatzu, Yamcha and Piccolo arrive and begin their training after Piccolo inadvertently tells a joke. Meanwhile, on Planet Namek, Zarbon and Vegeta find each other and begin their battle.