10. The Man Who Came To Be Dinner
A late season effort which boasts few defenders even amongst the most fervent members of the show’s huge audience, The Man Who Came to Be Dinner saw Homer and eventually the rest of the eponymous family abducted by aliens who want to eat them.
This was essentially the entire episode’s ill-considered plot, a turn more surreal and cartoony than fans had any interest in and one which made it hard to care about the fate of the show’s cast.
Too broad and silly for The Simpsons, the kindest guess is this one was made to troll long time viewers who expected something more believable or recognizably relatable than this Duck Dodgers-style adventure.