<P> Guest appearances: Ken Hastwell (as umpire), Philip Whileman (as Sam). </P> <Ul> <Li> 10: "Puppy Love" (25 November 1978) </Li> </Ul> <Li> 10: "Puppy Love" (25 November 1978) </Li> <P> James and Tristan drive through the night back from a conference in London . Tristan displays his lack of sleep by driving the car through the back of the garage . </P>

All creatures great and small series 7 episodes