The music mogul who put bands like the Ramones on national television died this week. Today on Soundcheck: A look back at Don Kirshner's most enduring legacy -- a TV show he hosted in the 70s and 80s called “Don Kirshner’s Rock Concert." Later: the sounds of Washington, D.C.'s escalators get a remix. Plus: rockabilly legend Wanda Jackson declares that "The Party Ain't Over." She'll join us in the studio to talk about her new album.