Dragon Ball Z - episode 46 - 01 May, 1990

With Bulma safely hiding in a cave, Gohan and Krillin fly to the nearby Namek village to investigate. Crouching behind a rock, they see Frieza and his henchmen trying to steal the fifth Dragon Ball. Back on Earth, Master Roshi tells Goku everything that happened on Namek and asks for Goku's help, but he's still not healed yet. Yajirobe arrives with a bag of Senzu beans for Goku. Now that he's healed, he flies to Capsule Corp. where Dr. Brief has made a replica of his spaceship, which includes a gravity chamber to train in on his way to Namek. Goku immediately blasts off for Namek. (Source: Wikipedia)