Leon's Thriftway might possibly be the oldest black-owned grocery store in the country. Meet Leon Stapleton, the 91-year-old who has owned it for 49 years. Then: In Kansas City, are we a little too quick to rise to our feet after every show? Should standing ovations be saved for truly exceptional performances? Or is that snobbish? Guests: Leon Stapleton, owner, Leon's Thriftway Hampton Stevens, music and theater critic, The Kansas City Star and Flatland Vanessa Severo, local actor Jeff Lunden ,