[Description by Dave Mitchell] This exhibit includes two 1968 airchecks of Charlie Van Dyke on KLIF in Dallas. The first I recorded myself on August 3, 1968 from my bedroom in Lewisville, Texas, just outside of Dallas, while home with my parents between jobs. I was 20 at the time. Charlie was 19. Even then, his pipes were fabulous. The Hamm’s Beer spot is classic, but much of the music KLIF was playing that afternoon was not. The Distortions? The Flavor? Aesop’s Fables? Who were these guys? Notice the promo for the Cowboys vs. Bears 1968 Hall of Fame game. In those days, KLIF was the flagship for the Cowboy radio network. The voice of the Cowboys, Bill Mercer, was one of my broadcast school instructors. The Big Switch was quite a promotion, dreamed up by Gordon McLendon. I remember everybody was asking if KLIF was “going country.” Actually, the entire air staff traded places, for a day, with the air staff of KFJZ in nearby Fort Worth. You can read more about it at Steve Eberhart’s History of KLIF site. This aircheck also includes Charlie’s “blue skies, green lights” signature sign-off that he used in all the years he was at KLIF.  The second aircheck begins at 6:04 and was recorded in January 1968. Here again is Charlie, on a Saturday show, unsure of who is following him, but nevertheless honing the skills that would someday take him to Boss Jock fame. The newsman is Frank Haley, another one of my instructors in broadcast school in 1966.