In February, ABC paid the FCC $1.2 million in fines leveled against two ABC owned-and-operated stations and 43 affiliates. ABC said it did so to give it the right to appeal.
The brief was filed in the federal court of appeals in New York on Friday. ABC said it believes the FCC order was partly a First Amendment violation.
The network was joined by the ABC affiliates board, NBC and Fox together, and CBS in all filing briefs opposing the "NYPD Blue" decision.