The late Roger Moore visited not one but two Sussex locations, in his role as Simon Templar.
In The Gentle Ladies, he meets two sisters who are far from the mild-mannered old dears they are thought to be. The dotty pair are in fact retired art thieves! The village of Bosham was used for their home town.
The cliff-top road running through Peacehaven is glimpsed in the episode The Well Meaning Mayor, with the Saint driving through the town (Seatondean in the story).