Two airdates on Sunday, August 3: at 5 PM in Western Massachusetts, on WNNZ, AM 640 (AM station of WFCR). The station has a pretty large coverage, according to this map. Looks like you can hear it in Boston, Hartford, Providence and Albany, even up into Vermont and New Hampshire.
Also at 6 PM in Illinois on WNIJ/WNIU, 89.5 FM, originating from DeKalb. From this coverage map, it looks like you might be able to hear the station (faintly) in Chicago.