The Merv Griffin Show Season 9, Episode 6

George

More wine and turkey? (Pours Celia more wine)

Celia

Hmm. (takes a sip)

Jerry

So when I saw George on the street with an 18 pound turkey and a giant box of wine, I thought: ... What a coincidence. We're just about to eat.

Celia

What is that stuff in turkey that makes you sleepy?

George

Tryptophan.* (*footnote - see end of script)