The idea that The Simpsons is not what it used to be is now so widely accepted, even Matt Groening has admitted the show should end.
But while the quality of the writing has undoubtedly dipped over time – a 26th season has just been confirmed – the cartoon still has a lot of cultural muscle, able to attract big name guest stars still keen to be associated with what was one of the major, game-changing phenomenons in the history of TV.
The latest is Guillermo del Toro, the Mexican director who, fittingly, has directed this year's tradition 'Treehouse of Horrors' Halloween special.
Managing to cram in references to an impressive array of horror stories both classic and new (Frankenstein, The Raven, The Fly, World War Z) not to mention a few from Del Toro's own greatest hits (Pan's Labyrinth, Blade II, Hellboy), it's 3 spectacular minutes of a visionary director relishing the boundless possibilities of animation.
Our one criticism? It could be a little funnier, but then everyone knows that about The Simpsons these days.