Eight-year-old Jason Barnes is a dinosaur freak. All he wants for Christmas is a high-tech robotic toy called Dino-Bot. Unable to wait, he opens one of his presents early. What he finds ...

Ncuti Gatwa and “Bridgerton” star Nicola Coughlan face off against dinosaurs — and multiple versions of the Doctor — in the trailer for this year’s “Doctor Who” Christmas special.