Somewhere between the baby boom and the Internet boom, signs of success changed from liquid lunches and nights out with clients to all-nighters and cell-phone conferences.

How did this happen? In the season finale of Livelyhood, a PBS series about work, host Will Durst examines The Working Day That Wouldn’t Die, waxing nostalgic in one segment with legendary adman Jerry Della Femina about the golden days of three-martini lunches.

Patrice O’Neill, executive producer of Livelyhood, thought Della Femina was the perfect person to discuss the liquid lunch phenomenon. “He had the perfect stories, wonderful and colorful,” she said.

Her crew filmed the two participants as they lunched at Della Femina’s self-titled restaurant in New York, chatting about a time when people had martinis or a bottle of wine at lunch and then went back to work. “Now, if someone ordered a martini at lunch, people would recoil,” Della Femina tells Durst.

So were any olives harmed in the filming of the segment?

“No one had martinis,” O’Neill said. “We were working!”

The program airs Oct. 6 on PBS.