Thunderbirds were a major highlight of my latchkey kid days. Saturday mornings, laden down with a shilling, my brother and me always a choice between saturday morning pictures with an ounce of "spanish gold" or a swim at our local pool followed by a bag of chips. The thing both had in common were that at midday it was time to head home for our weekly episode of Thunderbirds and our tradition of shouting out the number Thunderbird the small pics in the opening credits related to.