TV WORTH WATCHING
BBC AMERICA, 8 p.m. ET; 5/9/2013
Though I recommended this episode of Doctor Who when it premiered on BBC America, I didn’t push its biggest selling point. Now I can, just in time for tonight’s repeat: It features, as guest stars, Diana Rigg as the week’s villain, and her real-life daughter, actress Rachael Stirling, who plays Rigg’s daughter here, too. What a duo. And, set in Yorkshire in 1893, it’s so much fun.