Complex sentence: Baker was also the host of The Geoff Baker Show on Sports Radio KJR in 2012 and 2013 and a regular weekly guest on Talkin' Baseball with KJR host Mitch Levy from 2008-2013.
Split into simpler sentences: Baker was also the host of The Geoff Baker Show on Sports Radio KJR in 2012 and 2013. He was also a regular weekly guest on Talkin' Baseball with KJR host Mitch Levy from 2008-2013.