Thunderbirds - Volume 1 Cheats for DVD
When you answer all 18 questions in the quiz correctly the hidden 'Making Of' featurette becomes unlocked. You can cheat by going directly to title 7 on the disc. The answers to the quiz are; 1C, 2C, 3A, 4B, 5C, 6A, 7B, 8C, 9B, 10A, 11C, 12C, 13A, 14B, 15C, 16A, 17B, 18A. Then same footage is on Thunderbirds volume 8 and on the Thunderbirds Companion disc.