Though never aired with the series, these are the lyrics to the Bewitched theme.

Bewitched, bewitched, you’ve got me in your spell.
Bewitched, bewitched, you know your craft so well.
Before I knew what you were doing I looked in your eyes
That brand of woo that you've been brewin’ took me by surprise.

You witch, you witch, one thing is for sure
That stuff you pitch just hasn’t got a cure.
My heart was under lock and key but somehow it got unhitched
I never thought my heart could be had
But now I’m caught and I’m kinda glad to be
Bewitched.