This idea started out as a SAP channel on c-span and it was all the international short wave broadcasters on c-span radio 1, which including the wrn lineup. Wrn World Radio Network in London supplied the content. C Span 2 featured BBC World Sevice 24/7. None of that made it to the FM station. FM mainly runs cspan's audio from cspan 1. This used to be the jazz station owned by UDC (University of the District of Columbia). In the days of serious budget crunches several years back they DC goverment sold the station to C Span.
In Baltimore you mainly have Clear Channel and Infinity stations.
105.7 used to be QSR which moved to 102.7. Live 105.7 carries Stern and Don and Mike, they do a local miday show.