41 episodes
First episode: E1

Thunderbirds are Go!
Thunderbirds is a 1960s British science-fiction television series which was produced using a mixed method of marionette puppetry and scale-model special effects termed "Supermarionation". The series is set in the 21st century and follows the exploits of International Rescue, a secret organization formed to save people in mortal danger with the help of technologically advanced land, sea, air and space vehicles and equipment, launched from a hidden base on Tracy Island in the South Pacific Ocean.
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41 episodes
First episode: E126 episodes
First episode: E16 episodes
First episode: E1Quick answers about this series, release status, and episode totals.
Thunderbirds first aired on September 30, 1965.
Thunderbirds currently has 2 seasons and 32 episodes.
Thunderbirds is ended, and no upcoming episode is currently scheduled.