His advice call-in show, "What's Your Problem?," aired from 1967 until the mid-1990s on stations WCAU-AM and WPEN-AM in Philadelphia, WOR-AM and WEVD-AM in New York and in national syndication on NBC Talknet.
A city planner by training, with a civil engineering degree from City College of New York and a master's degree from the Wharton School at the University of Pennsylvania, Meltzer moved from a career as a Philadelphia expert in urban problems to a radio host on WCAU.
Segments were often bracketed by Meltzer delivering aphorisms or reciting moralizing poetry ("What shall we do with grandma, now that she's old and gray?")
Among his many sayings were: "Courts are made for judges and lawyers" and, as he often sought to provide comfort, "The good people in this world far outnumber the bad."
Meltzer, a Jewish man, chose to work Sunday, to give his Christian colleagues time off for worship.