After Laura Palmer's killer got revealed early in season 2, the series took a nose dive (especially since David Lynch didn't really participate anymore). Then it picked itself up again and the ending of season 2 was a really exciting cliffhanger. But it was already too late, viewer ratings dropped and the show was cancelled. Laura Palmer said "I'll see you in 25 years" to agent Dale Cooper in the red room just before the show ended.
And guess what, 25 frickin' real years later the show continued for a third season. Fully directed by David Lynch himself. It was the weirdest, most surreal thing I have ever seen on screen. Absolutely loved it.