There's 8 more episodes of Fireball XL5 on the 3rd disc of the 5 disc set. Here's an image from one of the Fireball XL5 Annuals.
Wings of Danger February 3 1963
The Subterraneanians from Planet 46 have built a remote control spaceship that fires radioactive bullets. They blast Steve and Dr Venus has to operate to save his life. Once Steve is better he goes to Planet 46 to put those underground creeps in their place.
The Triads January 27 1963
The Fireball XL5 team meets some friendly giants and helps them with their rocket program by remaking their spaceship fuel.
Sabotage October 20 1963
Some creeps plant a Neutroni bomb on the Fireball XL5's navigation component and kidnaps the screw.
Prisoner on the Lost Planet March 3 1963
Steve follows a radio signal past known space to a planet where an Amazonian Queen is a prisoner. She knocks Steve out and holds the Fireball Jr hostage. Steve kicks her ass. Dr Venus sleeps in a round bed in her Fireball XL5 cabin.
Flight to Danger February 23 1963
When Lt. Ninety takes his a solo orbit of the moon to win his astronaut's wings his ship's power supply explodes blasting him into space. He floats until the Fireball XL5 chances onto him.
Space Vacation February 17 1963
On the way to vacation the Fireball Team helps the citizens of Olympus stop a space feud.
Mystery of the TA2 March 31 1963
A derelict spaceship, lost nearly 50 years, leads Steve and pals to Arctan where the missing spaceman has been living as their king.
Robert to the Rescue March 17 1963
The Fireball team is held captive by some aliens in their metal planet and Robert the robot comes to help. He blasts the wall out of the planet and saves everyone.
The stories have their limitations and it's all pretty stilly at times but I got a laugh. Here's a few color stills from the Bonus Feature section of the disc.