That is the last line of the theme song to this delightful family sitcom, which was part of ABC's Friday night lineup, a time I looked forward to all week as a child, for 1970-71, which included The Brady Bunch and The Partridge Family. That Girl, Love American Style, and Tom Jones rounded out the schedule.
It was a little like a blue collar The Sound Of Music, with three motherless children who had difficulty getting along with any of their governesses, until Nanny, or Phoebe Figalilly, came along. The Professor, the children's father, was played by Richard Long, shortly after The Big Valley, in which he played Jarrod, left the air. Like Samantha Stevens (Bewitched) and Jeannie (I Dream Of Jeannie), Nanny had mystical powers, except that her's were more subtle, not flamboyant. Her magic wasn't witchcraft; it was love.
I remember watching it a few times on FX in 1996, and TV Land aired the pilot in 1999, but otherwise I'm not aware of it being shown anywhere since its cancellation in 1971. I wish TV Land would make it a part of its regular lineup, instead of those boring original series. A DVD release would be splendid, but unfortunately I doubt that there is sufficient demand for it.