American TV network CBS has confirmed that it will fight the Federal Communications Commission over a record fine imposed by the regulator for Janet Jackson's infamous "wardrobe malfunction" during the 2004 Super Bowl.

CBS has asked an appeals court to overturn the FCC's fine of $550,000 for 20 CBS-owned stations. Those stations, along with CBS affiliates around the US, broadcast a quick flash of Janet Jackson's right breast during the half-time show when Justin Timberlake - in what was later explained as a "malfunction" of costume - removed a leather cup from her costume. The FCC ruled that the incident - the most TiVo'ed moment in American TV history - qualified as indecent and levied a record fine.

"We disagree strongly with the FCC's conclusions and will continue to pursue all remedies necessary to affirm our legal rights," CBS said today in a statement. Referring to the delays that have since been slapped on many live broadcasts in the US, CBS added: "CBS has apologised to the American people for the inappropriate and unexpected half-time incident, and immediately implemented safeguards that have governed similar broadcasts ever since."