“Game of Thrones” begins a seventh season with Cersei Lannister wreaking havoc from her perch on the Iron Throne. And Michael Palin of the Monty Python troupe plays the straight man in “Remember Me.”

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GAME OF THRONES 9 p.m. on HBO. “Apparently winter is really coming, finally,” Lena Headey, who plays Cersei Lannister — now seated on the Iron Throne — said in a New York Times interview about this fantasy epic’s climactic stretch, which includes seven episodes this season and six the next, its final. Season 7 begins as Cersei tries to even the odds, while Jon Snow (Kit Harington) organizes the north’s defense and Daenerys (Emilia Clarke) comes home.