David Hasselhoff was seen using a walker during a rare outing with his wife, Hayley Roberts , in the West Hills neighborhood of Los Angeles on Wednesday — drawing concern from fans of the “Baywatch” star. Photos obtained by Page Six showed Mr. Hasselhoff gripping the walker with both hands as the couple made their way across a parking lot. His representative told the outlet that the actor is recovering from knee and hip replacement surgery, is in physical therapy, and is “doing well and feeling