(Reuters) - Attorneys for Bill Cosby outlined their grounds on Tuesday for appealing his sexual assault conviction, citing what they called errors in legal procedure that may have biased the jury and warrant a new trial for the once-beloved comedian.The 81-year-old performer, best known for his role as the lovable family man and physician on the hit television sitcom “The Cosby Show,” was found guilty by a Pennsylvania jury in April of drugging and sexually assaulting a onetime friend in 2004.It marked the first such criminal conviction of a celebrity accused of sexual misconduct since the #MeToo movement that has brought down dozens of powerful, privileged men in American media, politics and business since the autumn of 2017.In September, the trial judge, Steven O’Neill, designated Cosby a “sexually violent predator” under Pennsylvania law, requiring the entertainer to register as a sex offender for life, and sentenced him to a term of three to 10 years in prison.Cosby, who is married, has insisted all along that any sexual encounters he had were consensual.