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Find out what 14 things we learned on the set of ABC's new cop drama.

Sure, there are plenty of procedural shows already on TV, but there's a new one that's got us setting our DVRs already. And not just because it stars two of our favorite under-sung actors, Nathan Fillion ('Firefly,' 'Desperate Housewives') and Stana Katic (bit parts in 'The Shield,' 'The Closer,' '24' and so on) ... well, maybe that's a lot of it.

But the concept's got us intrigued as well -- imagine a crime novelist helping the cops solve crimes. Now make that writer an absolute rock star ladies' man and make the lead detective a sassy, smart woman who can give him a run for his money ... and be his new muse. That, in a nutshell, is 'Castle,' ABC's new cop drama with a twist (premieres Mon., March 9, 10PM ET).

AOL TV got the inside scoop on the show, straight from the stars themselves, when we visited the 'Castle' set in Hollywood.

'Three's Company's' on-set feud ... Isaiah Washington's gay slur ... Miley Cyrus' racy pics ... find out where they rank on our list.

Before YouTube, camera phones and celebreality-TV, the best Hollywood catfights, feuds and fracases happened behind the scenes.

Some of the most salacious scandals were never caught on camera, but their fallout is the stuff of legend.

We dig deep -- from before the advent of the Internet and since -- to name our picks for TV's top 20 off-screen scandals of all time.