Name this tune, please

Remember that show called Sisters? I think it was on Saturday nights and Sela Ward was in it. What is the name of the theme song? It is so familiar but I can’t remember it. I think it’s a Beatles song. Thanks.

I went to the show’s web site (http://www.sisterstv.com) and they didn’t mention the name of the song but from what i gather it’s just a piano piece, not a Beatles song. Here is a page on the site that has audio of the theme song:

http://www.sisterstv.com/sismain/sisters.asp?body=audio.html

this page lists the theme song ad Seasons 2, 5 and 6 so perhaps another song was used in seasons 1, 3 and 4.

Sorry, forgot to mention that I found on the IMDB the theme song was written by John Debney.

Thanks.