When Did Marty Krofft Die?

Cydus Yolas and Moshopopoulos Yolas, known professionally as Sid and Marty Krofft or the Krofft Brothers, were a Canadian sibling team of television creators, writers, and puppeteers. Through their production company Sid & Marty Krofft Pictures, they made numerous children's television and variety show programs in the US, particularly in the 1970s, including H.R. Pufnstuf, Land of the Lost, and Sigmund and the Sea Monsters.