Norton has been the co-host of the UFC Unfiltered with Matt Serra and the morning radio show Jim Norton & Sam Roberts since 2016. He gained initial prominence as third mic on the radio show Opie and Anthony, with Gregg "Opie" Hughes and Anthony Cumia, from 2001 to 2014.
See also: Jim Norton, Jim Norton (Irish actor), Jim Norton & Sam Roberts, Opie with Jim Norton, Jim Norton (safety), and Gregg Hughes.