In radio news, more radio groups report their first quarter revenue results.\xa0 We also look at the top billing radio stations as well.\xa0 There will be news on the street. Next those call letter and format changes.\xa0 Next Bill Sparks presents a look in sports in 1975 from WCAU AM from Philadelphia Pa.\xa0 This will be followed by a classic aircheck from Ron Lundi from WABC AM from New York City on Feb. 24th, 1966.\xa0 Finally we present a nostalgia station KWXS from Prine Vill Oregon.