Thanks to "Berry's World" for this item. I'd heard it referred to last night, but didn't have the exact quotes:
Fresh from Austria, a socialist country, Arnold Schwarzenegger decided to become a Republican after listening to "the debates of Hubert Humphrey and Richard Nixon when they were debating for the presidential race," or so he told television talk show host Bill O'Reilly in May 2001. " Hubert Humphrey spoke about things I heard in Austria under socialism."
"having watched a 1968 presidential debate for which a friend provided the translation. "[Hubert] Humphrey stood for the government [that] will solve all your problems," Schwarzenegger recalled. "[Richard] Nixon said no, free to choose, let the people decide. So I said to my friend, which party is Nixon? He said Republican. OK, I said, I'm a Republican."
The Times also points out that the Nixon-Humphrey debates are famous, mainly, for the fact that they never took place.