Editing WRR (FM) (section)

===Classical music===
As network programming shifted to television, WRR-FM began airing classical music full time, while the AM station concentrated on news, talk and information. The City of Dallas sold WRR 1310 to [[Bonneville International]] in 1978, which switched the [[call sign]] to KAAM.  Meanwhile, the Dallas government kept WRR-FM, which continued its classical format.<ref>[https://www.americanradiohistory.com/Archive-BC-YB/1979/C-2%20Radio%20Broadcasting%20Yearbook%201979-12.pdf#page=81 ''Broadcasting Yearbook''], 1979 edition, page C-213.</ref>

Also in the 1970s, the station increased its power to 100,000 watts, from its previous output of 68,000 watts.<ref>[https://www.americanradiohistory.com/Archive-BC-YB/1980/C-2%20Radio%20Broadcasting%20Yearbook%201980.pdf#page=84 ''Broadcasting Yearbook''], 1980 edition, page C-221.</ref>