I also fondly remember seeing Jackie Mason four times live in the '90s, including his Politically Incorrect show twice (a year apart). Jackie Mason is part of family legend. Vacationing in the Catskills in the '50s, my parents went to an after-hours show with a comedian who was also a rabbi and said they laughed so hard they literally couldn't breathe -- yes, they saw then-unknown Jackie Mason.
Now in his 70s, Mason says his current show, The Ultimate Jew, is his last. It's closing this month, so I thought I'd better go. Tonight was the night. I went to the designated address, and it turns out that New World Stages is actually the old Worldwide, resurrected as a theater complex.
Jackie did seem older (I last saw him in 1996), but soon hit his stride. Despite some F-word usage, it was mostly clean, covering politics, Starbucks, restaurants, immigration, gentiles/Jews (LOTS on this). Some material could be considered offensive, and it might help to be Jewish - lots of yarmulkes in the crowd.
When I got home, my Barnes & Noble order was there - less than 24 hours after placing the order. Wow, that's fast. Now I really really need to cool it on the book buying.