When did Thunderbirds Season 1 Episode 20 air?
Thunderbirds Season 1 Episode 20 aired on February 10, 1966 at 7:30 PM GMT.


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.

After Alan Tracy returns to motor-racing, his rivals decide to remove the competition by rigging a bridge with a movement-sensitive bomb, which will explode the moment that Alan and Grandma Tracy try to escape. (Some of this episode is narrated in flashback.)
Direct answers for episode-level questions and details.
Thunderbirds Season 1 Episode 20 aired on February 10, 1966 at 7:30 PM GMT.
This episode runs for approximately 50 minutes.
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