Game of Thrones showrunners and executive producers David Benioff and D.B. Weiss have set their first new TV series under their $200 million overall deal with Netflix, and it’s almost certainly not what you expect. The duo will executive produce an original six-episode dramedy series called The Chair, which will star Sandra Oh and revolve around the chair of the English department at a major university. Oh will play that lead character, and Jay Duplass will also star. The show actually originates from Amanda Peet, to whom Benioff is married. Peet will serve as co-creator and …