Posted by: eric1957 on 2008-09-13 
Also another show that could be considered for jumping the shark.
Posted by: Lava1964 on 2008-09-13 
Bit of trivia: After Kate Bradley vanished from the show after 1968, she was never referred to as being dead. In fact she was only alluded to twice in the two remaining years the show stayed on the air.

I guess beloved fictional characters weren't supposed to die in TV Land.