founding member of National Public Radio. In 1967, WAMU-FM began programming bluegrass music which, in its heyday on the main channel, included the Lee Michael Demsey Show and the Ray Davis Show and weekends included Stained Glass Bluegrass and West Virginia Public Radio's Mountain Stage. The station hosted an annual bluegrass concert at Fairfax High School, as well as the yearly "Pickin' in the Glen" concert, featuring performers such as Alison Krauss, Tony Rice, the Gibson Brothers, the Lewis Family, Hot Rize, and Red Knuckles and the Trailblazers. However, starting in the late 1990s, the station began paring back its on-air bluegrass programming in favor of news/talk programming. In summer 2001, the station fully transitioned its weekday programming to all news and public affairs from various providers including NPR, PRI, APM and the BBC World Service, and in September 2007 the station removed the last of its bluegrass programming from its main channel, shifting it all to the HD2 subchannel. On May 7, 2004, WAMU-FM began digital broadcasting using the HD Radio standard and launched the Americana-music station Bluegrass Country on its HD2 subchannel. The station also operated for several years an HD3 service, WAMU-3, broadcasting a mix of talk and music programming, including simulcast programming from Towson University's WTMD. Also in 2004, the prominent Washington journalist Ellen Wadley Roper left WAMU a $250,000 bequest, the largest gift in the station's history. When fellow public radio station WETA returned to an all-classical music format in 2007, WAMU became Washington, D.C.'s only full-time public news station, ending two years of competition between the stations for D.C.'s NPR news audience. In December 2015, WAMU executives announced that long-time program host Diane Rehm, who began working at WAMU in 1973, would be stepping down from her show following the 2016 Presidential election, representing a major shake-up in WAMU's programming lineup. Rehm, then 79, stated that she wanted a younger voice to take her place at WAMU. Also in 2015, Kojo Nnamdi lost the local public affairs program The Kojo Nnamdi Shows second hour of broadcasting, showing a trend for easier-to-access media for younger consumers. In 2021, Nnamdi retired his daily program although he continued to host the weekly "The Politics Hour" program with analyst Tom Sherwood. In February 2018, it was announced that WAMU, KPCC and WNYC had bought the archives of Gothamist, and WAMU would resume the publication of local Washington news