...you have to try and explain who Joan Collins is.
I mean, for crying out loud. It's not like I work with a bunch of off-shore oilmen or something, men who you might expect not to know their Joan Collins from their Sally Kirlkand. For whom Liza requires a surname. Those sorts of men. Manly men. But this was one of the women I work with.
In the process of trying to explain, you then have to explain what Dynasty was.