Pilaf Arc
Episodes 001-013. The initial search for the Dragon Balls, with the Pilaf Gang as the main antagonists.

Twenty-First Tenkaichi Budoukai
Episodes 014-029. The Kamesen Style training through the entire 21st Budoukai.

Red Ribbon Army Arc
Episodes 030-068. Everything involving the Red Ribbon Army, from Silver's first appearance, to the defeat of Black.

Uranai Baba Arc
Episodes 069-083. The events at Baba's palace, the rematch with Pilaf, and Gokuu's journey.

Twenty-Second Tenkaichi Budoukai
Episodes 084-101. The entire 22nd Budoukai.

Piccolo Daimaou Arc
Episodes 102-122. The introduction of Piccolo, all the way until his death.

Twenty-Third Tenkaichi Budoukai
Episodes 123-153. Gokuu's training in heaven, the entire 23rd Budoukai, and Gokuu's adventure with Chichi.