Is Van Dyke still living?
Yes, and it quite good health.
Van Dyke and MTM are both perfect examples of the benefits of hypocrisy. No program was more wholesome than The Dick Van Dyke Show. They had episodes about Judaism, Catholicism, race relations, etc.—all of them as wholesome as they could be. Despite the constant jokes about how man-hungry Sally was, there was never a hint that she wasn’t a virgin. There isn’t a show on today with an unmarried woman who isn’t a tramp.
When it became acceptable, both Van Dyke and MTM came out of the closet as conventional lefty progressives.