Got to be Thunderbirds (I might even run a poll for what was your favourite TB - 1,2,3,4 or5!). Captain Scarlet next. You missed Fireball XL5 off the list! Probably be some smartarse that mentions "Torchy" or "Twizzle" - Andersons first efforts with puppets - but in truth they were crap.
^ Chopper: Supercar was the first "21st Century" production about well, a super car; "Secret Service" was the final Anderson puppet production before UFO and Space 1999. Secret Service was mixed with live action, had a vicar voiced by Stanley Unwin who worked with a secret agent (Matt I think) who minaturised himself and was carried around by the vicar in an attache case.
My Dad even built me my own Tracey Island out of wood, sackcloth and plaster of paris, to fit the TB models that came out of Kellogs packets at the time! I was mad about Thunderbirds at the time, and my kids quite like it now.