Bill Cosby Performs for Older Crowd in First Comedy Show Since Trial

Bill Cosby is back to doing stand-up (or sit-down) for the first time since his sexual assault trial last summer ... and his crowd and venue has certainly changed.

Cosby's performed a live comedy set Monday at the LaRose Jazz Club in Philly alongside the Tony Williams Jazz Quartet. Most of Cosby's material focused on the comedian's struggle with blindness ... he didn't touch his pending trial.

The disgraced comedian's retrial on sexual assault charges is set to begin in April, and a new jury selection begins at the end of March. He averted a decision this past June when a jury couldn't agree on a verdict ... ending in a mistrial.