The Avengers made its debut on British Television with the broadcast of the episode 'Hot Snow'.
Patrick Macnee later married Catherine Woodville, who played Peggy, in 1965.
In this episode Doctor David Keel's fiancee Peggy is murdered, which sparks his desire to combat crime.
The first third of this episode exists - up to the end of Act 1 and the first commercial break. The only complete episodes left from the first series are The Frighteners and The Girl On The Trapeze.
The makers of The Avengers wanted Steed to carry a gun. Patrick Macnee refused because he had seen so many friends die in World War II and never wanted to touch a gun again. When asked what he thought Steed should carry, Macnee replied, 'An umbrella'. So Steed carries an umbrella with a concealed sword in it and it is left to his sidekicks to deal with guns.
In series one, Doctor David Keel is the main character and Steed is his sidekick. The show also has a more realistic (but much less fun!) feel to it.