RADIO

RKO General--whose alleged practices of false billing to advertisers may cost it the 14 federal licenses that it needs to keep broadcasting--has some new problems with the Federal Communications Commission. On Friday RKO disclosed new instances of erroneous billing by its Boston radio station, WRKO, which the company said had falsely billed clients for spot ads that it had not broadcast from January through October of this year. RKO said the erroneous billings had been turned up late last month during a routine audit of WRKO’s log books and that the employee responsible had been fired.