In 1977 the Federal Communications Commission (FCC) revoked WLLE's license, after an investigation begun in 1973 determined that the station had engaged in improper billing practices. The station was allowed to continue broadcasting while it appealed this ruling, and the legal proceedings did not end until October 1979, when the U.S. Supreme Court upheld the license revocation.
The FCC withdrew WLLE's license in 1977 after a probe started in 1973 found that the station had mischarged its clients. The station was allowed to keep broadcasting while it appealed this ruling, and the court case didn't wrap up until October 1979, when the U.S. Supreme Court confirmed the revocation.