I'm

.

I'm

. Good morning. I'm Jane Pauli, and this is Sunday morning. Tonight in Los Angeles, the music world celebrates its best and brightest at the Grammy Awards here on CBS.

And throughout the morning, we'll be hearing from an array of musicians,

Grammy nominated and otherwise, as we get ready for music's biggest night.

But some of the most memorable songs in American life aren't Grammy winners or even hits.

They're TV theme songs.

And this morning we'll play Name That Tune with David Pogue.

You don't need to hear more than a few notes

to recognize a classic TV theme song.

So why have most of them disappeared?

I think most of it is evil corporate greed.

Ahead on Sunday morning, the past and future of the TV theme song.

Speaking of the TV theme song.

Speaking of the Grammys, singer-songwriter Jeff Tweedy,

leader of the popular indie rock band, Wilco, is a four-time winner himself.

And critics are calling his latest solo work perhaps the best of his career. He'll talk with Anthony Mason.

As frontman of the band Wilco, Jeff Tweedy leads a devoted army of fans.

Does that feel like a responsibility?

It feels, yeah, like having a congregation of some sort.

You know, yeah.

...