When lady tennis-player jokes were still lady-German-swimmer jokes

I've been watching a lot of Mary Tyler Moore on DVD lately. It's a great show, and it holds up really amazingly well.

The one thing that often strikes me is the dated pop culture references. There's at least one reference per episode I have to look up. Recent examples include (how many do you know?):

• Eric Sevaride
• Chad Everett
• Dave Garroway
• Euell Gibbons
• Kathryn Kuhlman
• Veal Prince Orloff
• Baked Pears Alicia (and this one's not fair, because it appears to have been made up. I don't have time to look up imaginary food. Well, OK, yes, I do. But I can at least save you the trouble.)
  

But then, sometimes, there's a reference so dated it's hilarious — even though I don't have to look anything up. This was the best exchange of this evening:

Lou: What would happen if Billie Jean King married Bobby Riggs?
Mary: What?
Lou: Her husband would be very upset.
(Big laugh from Lou, little chuckle from Mary)
Lou: See? That was a joke that we could both enjoy. It had women's lib in it for you and sports in it for me.