Ironic, isn't it? That aside, I remember watching that episode of Happy Days and thinking that the utterly stupid 'Jump the Shark' stunt signaled the effective end on the show as an entertainment powerhouse.
I just never thought that 'jump the shark' would thereafter become synonymous with 'a far-fetched stunt' signaling a downward spiral in quality. Sort of like the Dem Party knowingly putting a dementia patient into the Oval Office because 'Mean Tweets' terrified them.