The sitcom may be responsible for the term, but in our final ever Jump the Shark we reveal that Fonzie’s waterskiing feat wasn’t even the show’s weirdest moment

With less at stake, Alexander Armstrong’s tea-time quizshow is now just a leisurely 45 minutes of tensionless pleasantries

The show’s catchphrases launched a thousand memes – but then Cupid shot his arrow and it all began to unravel

Cillian Murphy’s gang leader Tommy Shelby mutated from plausible historical character to Zelig in a potboiler

The atmospheric crime thriller based around a family laundering cash for a drug cartel never held back on ridiculousness. But it met its tipping point in season three

It offered the vicarious glamour of a globe-spanning thriller, but the show’s golden period lasted about four-and-a-half episodes

Shouty presenters John Torode and Gregg Wallace transformed the gentle 90s oddity into a showcase for self-promotion

Helen Mirren’s DCI Jane Tennison set the template for nuanced female characters. But seven series of trauma wrung out the subtleties

Even Springer repeatedly distanced himself from his own creation. But the nail in the coffin came when Jeremy Kyle got involved

The slick action series about a self-driving car ran out of gas in its ludicrous third season. Turns out there is such a thing as too much Hoff

Si and Dave’s health kick is laudable. But watching them politely turn down that third chocolate brownie isn’t the same

The glossy Monterey-set show lost its way in its second season, with the addition of Meryl Streep in ill-fitting false teeth

Moving the action outside the family’s north London house jolted the show’s gentle surrealism into broader slapstick

Too much of the final season’s precious screen time was given over to Brian Cox and his caravan of creaky thespians

The annual bash once had flowing booze and fierce feuds. Now it’s like a music biz circle-jerk at a sales conference

Netflix’s reimagining of the Archie comics quickly lost its way, with far-fetched storylines including bear attacks and organ-harvesting cults

The Australian soap went from fuzzy romances and 80s mullets to an over-reliance on memory loss as a plot device

The children’s animation about problem-solving dogs started with a simple premise but it was ruined by commerce and a conveyor belt of plastic tat

BBC One’s flagship debate show was once serious and slightly boring. How we long for those more sedate times

Netflix’s smash hit was the perfect mix of nostalgia, horror and pure escapism, until the silliness of season two’s seventh episode ruined everything