Ten top comics hit the stage to celebrate the 60th anniversary of The Improv comedy club in this special featuring archival footage of iconic performers. Ten top comics hit the stage to celebrate the 60th anniversary of The Improv comedy club in this special featuring archival footage of iconic performers. Ten top comics hit the stage to celebrate the 60th anniversary of The Improv comedy club in this special featuring archival footage of iconic performers. Ten top comics hit the stage to celebrate the 60th anniversary of The Improv comedy club in this special featuring archival footage of iconic performers.