 Giammarco had his television debut at the age of 11 at Teleabruzzo.He then worked with laQtv, Tvsei and wrote for IlCentro newspaper, writing about sports.Giammarco got an opportunity to present his book at Mediaset in 2016 and later joined them as sports correspondent in central and southern Italy.He worked at SportsMediaset for three years as a journalist, envoy and as a specialist on football transfer market.He also worked with Premium Sports and for Mattino Cinque for the program of morning’s Canale 5.