I agree. (Edit: to add to this, I've always thought that the third-last episode of Futurama, 'Murder on the Planet Express', was a return to form and reminiscent of the heyday of the show).
On the subject of tv shows, ‘Peep Show’, the British sitcom, also had a very strong final season and final episode.
Yes, they tried to end the show a couple of times but the last-last episode is lovely.