Can't find a song title/artist...heard it on TV?

I heard a song at the end of a TV show about a week and a half
ago...maybe two weeks. I think I copied down some of the lyrics right
but I'm not sure. I think it goes: "When it's time to go just say so
and I'll go........just wave goodbye."

I wish I could remember what tv show it was. Anyone have any ideas on
what it could be? Google was no help. Thanks!