On KTVU’s 6 p.m. news Friday, co-anchor Julie Haener informed viewers that longtime anchor Dennis Richmond had undergone cancer surgery. “He’s in good spirits and hopes to be back as soon as he is physically able,” she said. Today, Chuck Barney of the Contra Costa Times reports that Richmond’s prostate cancer surgery on Jan. 23 was successful and he is in the middle of a recovery period that is expected to keep him off the air for at least another week. It was the second major operation in less than six months for Richmond, who plans to retire in May. In the fall, he underwent surgery to repair a herniated disc in his neck — a procedure that kept him out of the anchor chair for six weeks. Richmond, 64, tells Barney that his recent medical ordeals were not a factor in his decision to retire.