Photo: Andy Cross (Getty Images), Barbara Nitke/CBS Here’s what’s happening in the world of television for Sunday, February 7. All times are Eastern. Advertisement Top picks The Equalizer (CBS, 10 p.m., series premiere, special time): First, it was a sneakily warm, occasionally terrifying British guy with an ad in the paper and a knack for wearing a trenchcoat. Then it was Denzel Washington, making friends at diners and being very Denzel about it. Now it’s Queen Latifah. What do they have in common? Friends, they know how to equalize. Look for Stephen Robinson’s recap of tonight’s premiere in the coveted post-football spot, before it jumps to its usual 8 p.m. slot next week. And here, have a little Queen Latifah interviewing Denzel Washington about his role in