Zero Tester

This "homage" to Gerry Anderson evaded complaint from ITC's Japanese division because Tohoku Shinsha, which produced the series, also distributed Anderson's "Thunderbirds" (1965) in Japan.

This series ran 66 episodes. The series' first 38 episodes were titled "Zero Tester"; the rest of the series, retitled "Zero Tester: Chikyu o Mamotte!" ("Zero Tester: Save the Earth!") (1974), was aimed at younger viewers and introduced the Gallos aliens.