Rob Hart joins WBBM Newsradio

Rob Hart

Rob Hart

For the second time in five years, Rob Hart has left WGN AM 720 to jump to an all-news radio station in Chicago.

This week Hart exited the Tribune Media news/talk station to join CBS Radio WBBM AM 780/WCFS FM 105.9 as a fill-in part-time reporter and news anchor. He began training Monday, according to Ron Gleason, director of news and programming at WBBM Newsradio.

Saturday was Hart’s last day on the air at WGN, where he’d been working as a part-time news anchor and fill-in host since last July.

Hart ended his first stint at WGN in 2011 when he left to help start up Merlin Media’s ill-fated FM News 101.1. At the outset it was, he acknowledged, “ill-conceived and poorly executed” — an opinion shared by many before the venture folded the following year. He also worked for WLUP FM 97.9 and Rivet News Radio, and filled in on WLS AM 890.

Hart, 35, who grew up on Chicago’s Southwest Side and graduated from Marquette University, worked as a news anchor and reporter at WTMJ in Milwaukee before joining WGN the first time in 2005.

“Happy to say that I’m joining @WBBMNewsradio as a per diem reporter and anchor,” Hart tweeted Monday. “See you on AM and FM!”