Here’s everything you need to know about Dolly Parton’s new TV special, Dolly Parton: 50 Years at the Opry. Date: Nov. 26 Time: 9–11 p.m. ET Television Station: NBC Location: Grand Ole Opry Performers: Dolly Parton, Dierks Bentley, Emmylou Harris, Chris Janson, Toby Keith, Lady Antebellum, Margo Price, Hank Williams Jr., and more Highlights: The…