Love the classic armoires and fringed lampshades of Downton Abbey? Like your sofa to come in a ’60s burnt orange à la Mad Men? For those looking to replicate the set designs of their favorite set-in-the-past TV shows, there’s a good chance you’ll find what you need at Nook n’ Crannie. The store, located in north Astoria, offers antique and Mid-Century furniture, art, clothing, and collectibles at prices that won’t bust your budget. But one of the best reasons to shop here is that all of the proceeds go to Betel of America, a nonprofit organization that provides free residential rehab for substance abusers.