Kolko, Porter named hosts of "Nats Xtra" pregame, postgame shows

Kolko, Porter named hosts of "Nats Xtra" pregame, postgame shows
MASN's "Nats Xtra" pregame and postgame shows will have new hosts in 2019. New, but not unfamiliar. Dan Kolko will move from his role as the on-field reporter on Nationals television broadcasts to succeed the retired Johnny Holliday as host of "Nats Xtra," while former Nationals third base coach and Astros manager Bo Porter has been named as the program's analyst, filling the role most recently held by Ray Knight, whose contract was not renewed. Kolko's role as the team's on-field...