Conversation so far:
when did the original lost in space series air
Lost in Space is an American science fiction television series, created and produced by Irwin Allen, which originally aired between 1965 and 1968.
what is the premise of lost in space
Lost in Space follows the adventures of the Robinsons, a pioneering family of space colonists who struggle to survive in the depths of space.
how many seasons was lost in space
Lost in Space ran for 83 episodes over three seasons.

Question: why did the show end
Self-contained rewrite: why did lost in space end