Superbowl Sunday always reminds me that there are two simple sentences that Americans can’t understand. One is “I don’t watch TV.”� The other is “I don’t watch any sport other than boxing.” They hear the words, but don’t understand the meaning.

I long ago stopped counting how frequently I have the following dialogue with various friends:

FRIEND: Hey, I know you don’t watch TV, but did you see (INSERT NAME OF SHOW) last night?

ME: Well, as you...