'1875' by Anthony Marriott

After his new time machine successfully sends Robert back to 1875, Professor Matic contacts a patent expert on Saturn and then gives instructions that no-one touch the device. However, Steve, Venus and Commander Zero decide to have a look at the time machine for themselves; unfortunately Zoonie activates the device, sending the trio back in time to the Wild West. Here Steve is elected Sheriff, while Venus becomes a bank robber named Frenchi Lil, with Zero as her accomplice!

Paul Maxwell (Colonel Steve Zodiac), Sylvia Anderson (Doctor Venus), David Graham (Professor Matt Matic / Lieutenant 90 / Zoony the Lazoon / Doc / Sergeant Mahoney), John Bluthal (Commander Zero / Deputy Sheriff Dodgem), Gerry Anderson (Robert the Robot)

Directed by Bill Harris
Produced by Gerry Anderson
Associate Producer Reg Hill

TX (UK - ITV):
9th September 1963

Notes:
*Featuring Colonel Steve Zodiac, Venus, Professor Matt Matic, Commander Zero, Lieutenant 90 and Robert the Robot