 Born in Cossato, a small town near Biella, Greggio began his TV career at age 18 in Telebiella, the first local private owned station in Italy thanks to the help of founder Peppo Sacchi.In 1978 he was hired as a comedian in RAI, appearing in "La sberla" e "Tutto compreso" with Giancarlo Nicotra and Giancarlo Magalli.His appearances in the national TV didn't gain him success, but Greggio had the chance to meet Gianfranco D'Angelo, another young comedian.