Table:
text: Main Line Broadcasting
Stations
Stations
DMA Market Station Frequency Branding Format
53 Louisville, KY WGZB-FM 96.5 B96.5 Urban
53 Louisville, KY WDJX-FM 99.7 99.7 DJX Contemporary Hit Radio
53 Louisville, KY WMJM-FM 101.3 Magic 101.3 Urban AC
53 Louisville, KY WXMA-FM 102.3 102.3 The Max Hot AC
53 Louisville, KY WESI 105.1 Easy Rock 105.1 Soft Adult Contemporary
56 Richmond - Petersburg, VA WLFV-FM 93.1 93.1 The Wolf Southern Country
56 Richmond - Petersburg, VA WWLB-FM 98.9 98.9 Liberty Variety Hits
56 Richmond - Petersburg, VA WARV-FM 100.3 Big Oldies 107.3 Oldies
56 Richmond - Petersburg, VA WBBT-FM 107.3 Big Oldies 107.3 Oldies

text: Main Line Broadcasting
Stations
Stations
DMA Market Station Frequency Branding Format
60 Dayton, OH WROU-FM 92.1 92.1 WROU Urban AC
60 Dayton, OH WGTZ-FM 92.9 Fly 92.9 Variety Hits
60 Dayton, OH WCLI-FM 101.5 Click 101.5 Modern Hit Music
60 Dayton, OH WDHT-FM 102.9 Hot 102.9 Rhythmic Contemporary
60 Dayton, OH WING-AM 1410 ESPN 1410 Sports
166 Hagerstown, MD - Chambersburg, PA WQCM-FM 94.3 94.3 WQCM Rock
166 Hagerstown, MD - Chambersburg, PA WIKZ-FM 95.1 Mix 95.1 Adult Contemporary
166 Hagerstown, MD - Chambersburg, PA WDLD-FM 96.7 Wild 96.7 Rhythmic Contemporary Hit Radio
166 Hagerstown, MD - Chambersburg, PA WCHA-AM 800 True Oldies 96.3 Oldies
166 Hagerstown, MD - Chambersburg, PA WHAG-AM 1410 True Oldies 96.3 Oldies

Question: What is DMA under Main Line Broadcasting?