 remains a favourite with "Thunderbirds" fans and commentators and is generally regarded as one of the series' best episodes.Along with "The Cham-Cham", the next episode to enter production, it went over-budget, causing the final instalment of "Thunderbirds" Series One ("Security Hazard") to be re-written as a clip show to lower costs.In 1976, "Attack of the Alligators!"