I am not a big fan of Paul Anka or his work, so I considered the new documentary on his career a default choice this morning since ice is on my satellite dish and the channel selection on Direct TV was severely limited. But it’s true: you learn something new and useful almost every day, and often in the least expected places.

I did not know, for example, that Anka wrote “Johnny’s Theme,” the now iconic music that Johnny Carson walked onto the stage to at the start of his version of “The Tonight Show.” But it’s how it ended up as Carson’s entrance music that hammers home an ethics lesson.

When Johnny Carson was preparing to take over from Jack Paar as the host of “The Tonight Show” in October 1962, he ran into Anka, whom he had worked with in a TV special. Carson mentioned to Anka that they needed a new theme, so the pop star composer of “Put Your Head on My Shoulder,” “Puppy Love” and the theme to “The Longest Day” repurposed the instrumental arrangement for “It’s Really Love,” a song recorded by his one-time girlfriend Annette Funicello (not one of Annette’s hits) and sent a demo to Carson.

Johnny phoned Paul and thanked him for the offer (and said he and Ed McMahon loved the tune) but said that “Tonight Show” bandleader Skitch Henderson had “his nose out of joint” (does any one use that phrase any more?) because Carson wanted to use a melody written by a “20-year-old kid.”

So Anka suggested that Johnny Carson write new lyrics to his song and that they call it “Johnny’s theme,” which would then be the composition of the “20-year-old kid” and Henderson’s boss. Brilliant! Henderson had to consent to the song’s use every night, and it was Johnny’s walk on music for 30 years until Carson handed over the show to Jay Leno.

Carson’s name on the song meant that he got half the royalties, which averaged $400,000 per year: Carson’s cut was $200,000 a year for lyrics that were never heard or sung. “Johnny’s Theme” had been played more than 1,400,000 times by the end of the Carson’s show’s run. Anka says that Carson admitted he was embarrassed to make all that money for nothing, but the singer shrugs and smiles about it. Johnny got a great theme, and they both made money.

My favorite Harry Truman quote, perhaps my favorite ethics quote by any President and right up there with Winston Churchill’s immortal, “Success consists of going from failure to failure without loss of enthusiasm,” is:

“It is amazing what you can accomplish if you do not care who gets the credit.”

I don’t know if Paul Anka was familiar with the quote or even if he knows about it yet, but his solution to the “Tonight Show” dilemma is as good an example of Harry’s wisdom in practice as we are likely to see.

[Still waiting for WordPress, or someone, to tell me how to get page breaks in posts under their new %$^&#@ block system…]