Costanzo began his career as a journalist, first as a contributing writer to
Paese Sera and then as managing editor of the weekly
Grazia. In the late 1970s, he was the founding editor of the newspaper ''L'Occhio
. Parallel to his career as a journalist, he worked as a radio and TV host, where he became known for his subtle, low-profile irony. His most popular show, Bontà loro'' was a staple of RAI's programming but he was forced to resign after news broke that he was a member of the
Propaganda Due masonic lodge. Costanzo then moved to
Silvio Berlusconi's main TV station
Canale 5, where he hosted the
Maurizio Costanzo Show. It was the first Italian
talk show. The program worked as a
talent scout and launched many Italian artists and showmen (like
Alessandro Bergonzoni,
Dario Vergassola,
Walter Nudo,
Daniele Luttazzi,
Ricky Memphis,
David Riondino,
Stefano Nosei,
Nick Novecento,
Claudio Bisio,
Platinette, and
Enzo Iacchetti), contributing to the popularity of as many others (like
Valerio Mastandrea,
Giobbe Covatta,
Enrico Brignano,
Giampiero Mughini, and
Afef Jnifen). Costanzo was the artistic director of Canale 5 until 2009. In 2010 he returned to
RAI, presenting the talk show
Bontà sua. Since 2011 he also collaborated with Radio Manà Manà. Costanzo was the "" (an aesthetical and rhetorical consultant for public appearances) of many Italian political leaders. He was a professor at the
Università degli Studi Niccolò Cusano. Costanzo also wrote screenplays for several films. In 1977 he wrote and directed his first and to this day, last film,
Melodrammore. In 1966 he co-wrote the lyrics of the song "
Se telefonando", which was popularized by
Mina. On 14 May 1993, Costanzo, who had expressed delight at the arrest of
Sicilian Mafia boss
Salvatore Riina, was almost killed by a bomb as he drove down a Rome street; 23 people were injured. ==Personal life and death==