- When "Thunderbirds" reruns were broadcast on the Fox network in the early-1990s, new music and voices were used for some episodes, which upset a lot of long-time fans of the show.
- For the DVD releases of the show the sound has been remastered and remixed to 5.1 Surround. This also includes the addition of various subtle sound effects that were not present in the original versions, for example beefed-up explosions, trundling wheels, and vehicle engines.
- The Blu-Ray release of the show crops the episode to a 16:9 aspect ratio, so as to "enhance" them for viewing on widescreen televisions. The 2015 Shout! Factory / Timeless Media Blu-Ray release corrects this by using the original 1.33 or 4:3 transfers.
- The 60-minute episodes have also been syndicated in 30-minute segments.
- According to ITC, the early 1990s Fox Network rebroadcasts had to have new vocal and music tracks recorded due to Michael Jackson owning the rights to ITCs music libraries. Edits were also made to remove scenes of characters smoking and drinking, and to shorten the individual episodes to 30 minutes from 60 due to the short attention span of American kids! In 1994, a completely altered version of the series was syndicated under the title "Turbocharged Thunderbirds." Live-action footage of two teenagers in Thunderbird 5 (renamed Hacker Command) was shot, while events from the 1964 series were said to be taking place on "Thunder-World." It was cancelled in 1995.
- Episodes were later edited together into the following made-for-video releases: Thunderbirds: Countdown to Disaster Thunderbirds in Outer Space Thunderbirds to the Rescue
- In 2001, several episodes were adapted into audio book format for release on tape and CD.
- Japanese broadcasts replaced the famous instrumental theme in the opening credits with a different recording of the same tune - with Japanese lyrics.
- Tech TV in the us airs the episodes uncut and split in to two parts so that they can air the in half hour segments with trivia an commentary pop-ups at the bottom.
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