Steve Shaffer, who will headline Surflight Theatre’s next “Comedy Tonight” show on Saturday, Oct. 12, is a veteran comic, writer and actor who kicked off his showbiz career way back in 1983.

In just about a year Shaffer earned what was then the comedy equivalent to the Good Housekeeping Seal of Approval. He was repeatedly invited back to appear on “The Tonight Show,” and not with Jimmy Fallon or Jay Leno but with Johnny Carson, who was known for making or breaking young comedians’ careers.

“Johnny mentioned I’m from Philadelphia, South Philadelphia actually,” Shaffer told the audience on his first “Tonight…