WJHU-Radio Program Notes This week on The Marc Steiner Show: * Tuesday, March 21: A conversation with humorist Bob Somerby. His one-man comedy show, "Material World," concerns the product explosion of the past 40 years and our increasing loss of control over personal and societal spending as we pursue these products. * Wednesday, March 22: A conversation with Gov. Parris Glendening, who will take questions and comments from callers and discuss important issues facing the state. * Thursday, March 23: A conversation with Baltimore Mayor Kurt Schmoke in a format similar to that of the governor's show. The Marc Steiner Show is a public affairs call-in program broadcast every Tuesday, Wednesday and Thursday from 7 to 8:30 p.m. on WJHU, 88.1 FM. Topics and guests are subject to change. For more information, call 516-WJHU.