 When "Radio & Records" was merged into Billboard in 2006, CMT's Country Countdown USA continued using the Mediabase 24/7 chart, which is also used by Bob Kingsley's Country Top 40.Concurrently, in August 2006 Lon exited Radio & Records to launch his own Country trade publication, Country Aircheck.When Country Countdown USA debuted, the show used a custom jingle package from Jam Creative Productions in Dallas, which included chart number jingles that segued between songs on the show.