KCUV, which was launched late last year by the same folks who brought us KNRC, is doing a much better job of living up to its potential than is its sister station. The outlet features a wide range of music that fits under the Americana umbrella -- country, alternative country, blues and plenty of other genres that are too seldom heard on area airwaves. KCUV's nickname, Colorado's Underground Voice, is appropriate, because its minuscule advertising budget has forced staffers to don sandwich boards to spread their musical gospel. There's no telling if this word-of-mouth campaign will succeed, but it's got a chance -- because KCUV is worth talking about.