5. Dark Shadows
This late-1960s gothic, supernatural soap opera spanned the centuries during its run, as the storyline reached back to Barnabas Collinss pre-vampire days and jumped ahead to the 1990s, when Collinwood had been destroyed and the Collins family members were either dead or insane. The writers even played with alternate reality with plotlines set in parallel time, The end result: An epic piece of camp melodrama that emphasized character angst and the eternal nature of love over the rules of time travel.
Pictured, Jonathan Frid as Barnabas Collins in a scene from the show.