Doctor Who | 9pm on BBC-A

The Master (John Simm) is reborn on Christmas Eve, kicking off a battle with the Doctor that spans the ruins of London and the mysterious Immortality Gate. Elsewhere, the Ood issue an ominous warning as a shadow falls across the universe. Wilfred Mott: Bernard Cribbins. Donna Noble: Catherine Tate. [GMMR: And stay tuned for a behind-the-scenes look at the making of the “Doctor Who” specials at 10:15pm on BBC-A]