US comedian Bill Cosby, who is serving three and a half years in jail, has filed a new appeal against his conviction for drugging and sexually assaulting a woman 15 years ago.
In court documents filed Tuesday with Pennsylvania's Supreme Court, Cosby's lawyers argue that five women should not have been allowed to give evidence at his trial as witnesses.
They say that their "decades-old" allegations, which were not part of the charges, had prejudiced the jury.
The attorneys also argue it was "fundamentally unfair" that deposition testimony Cosby gave in a civil case regarding his use of sedative drugs and his sexual behaviors in the 1970s was heard in court.
They argue that Cosby believed the testimony was immune from prosecution when he gave it.
The 83-year-old actor shattered racial barriers with his Emmy-winning role on "I Spy" in the 1960s, and then as a dad and doctor on the hit TV series "The Cosby Show" two decades later.
But he fell from grace as allegations of sexual misconduct emerged against him, and was found guilty in 2018 of assaulting Andrea Constand at his Philadelphia mansion.