Co-star reveals biggest regret about working with Dick Van Dyke on Diagnosis: Murder

Paging Dr. Mark Sloan. As Dick Van Dyke turns 100 on Saturday, one of his former “Diagnosis: Murder” co-stars says that there’s one thing he wishes he had done more of during their time working together. Charlie Schlatter, who starred alongside the Hollywood legend for six seasons on the long-running mystery medical crime drama, told The Post that despite spending years on set together, he has surprisingly few personal photos of the two. “It’s...