In 1982, Dennis joined as one of the teams on "Russ Abbot's Madhouse" and "The Russ Abbot Show" before forming a comedy partnership with fellow impressionist Dustin Gee, which in turn led to a series of their own, "The Laughter Show". Following Gee's sudden and unexpected death in January 1986, Dennis carried on "The Laughter Show" as a solo performer and became the third host of "Family Fortunes" for a 15-year run between 1987 and 2002. It was at a recording of an episode of "Family Fortunes" in 1997 that Dennis was surprised by "This Is Your Life".