From a swimming pool that slides aside to reveal a rocket silo, to a pre-Beatles yellow submarine that crashes to the ocean inside a large green pod, the launch sequences of Thunderbirds have delighted generations fo viewrs. In this special Thunderbirds Unseen compilation we present a behind the scenes breakdown of the complete launches; one, two, three, four, and yes... even five. With the help of newly unearthed 35mm film and studio documentation, each instalment of Thunderbirds Unseen delves into the making of Gerry and Sylvia Anderson's classic television series, challenging some of the "established" facts of the show's early days. Thunderbirds was a massive success upon its debut in 1965 and this documentary programme investigates contributions made by scriptwriters, directors, special effects technicians, composer Barry Gray, and more. To help us along the way, we will be drawing on not just interviews with the cast and crew, but from surviving material ranging from surviving s