In today’s TV news roundup, Netflix debuted a trailer for “The Queen’s Gambit” and announced new cast members for the third season of “Sex Education.” Jemima Kirke, Jason Isaacs and Sudanese American artist Dua Saleh will join the cast of Netflix’s “Sex Education” in Season 3. Kirke will play former Moordale High School student and new headmaster Hope, who plans to return the school to its former glory.