He writes regular contributions for the Liberty Magazine. Slagle had his first appearance with a national audience in 1989 when he was on the Comedy Club Network that aired on Showtime. In 1991 he was on the MGTV Half Hour Comedy Hour. In 1996 he did a small stage production of the Slagle Naughton Report with fellow comedian Tom Naughton. He released three VHS specials, Live, Nation of Criminals and Awake.