Arquette opened up about his alcohol issues while taping an interview with "Oprah" ... which airs Thursday.
David also admitted his wife Courteney Cox staged an intervention ... and that he's been sober since checking into rehab back in December.
Amanda Bynes' arrest has most people thinking she's totally losing it ... especially after her wigtastic court appearance! But is she really off the rails -- you've gotta hear the new info we uncovered. Plus, war on the Jersey shore ... Snooki and Governor Chris Christie went…
We've interviewed the "Shahs of Sunset" and "Dukes of Melrose," but we've never gotten the King of…READ MORE