Notoriety and success came when he started working for television broadcasts on Rai Tre, among which Profondo Nord and Milano, Italia. His reporting coincided with the infamous years of bribery scandals, known as Tangentopoli (Italian for Bribeville), and the ascent of the Lega Nord separatist political movement - Lerner successfully portrayed in his shows the deep changes the country was experiencing.
He later served as director deputy director of the national newspaper La Stampa and briefly as director of news broadcasts for TG1 and Rai Uno. He publicly resigned after a selection of pornographic footage was mistakenly aired on primetime during his news broadcast, "TG1". Along with his resignation, he revealed that a politician from National Alliance, Mario Landolfi, who also was the president of the parliamentary commission of vigilance regarding the public TV broadcasting service, asked him to favour an acquaintance of his in the TG1
Gad Lerner is currently host of the news talkshow L'infedele, on La7 tv channel. He is considered left-leaning and near to the political figure of Romano Prodi. He also occasionally collaborates with the weekly Vanity Fair Italia, and writes books. He maintains its personal blog, where he personally writes and answers to its visitors (www.gadlerner.it)