There was a time, some years before the ascendance of rock 'n' roll on Top 40 radio, when popular music veered sharply from the mainstream to sample American roots-music traditions. Inspired by the songs of Pete Seeger and The Weavers, this "folk" music found its greatest expression during the early 1960's in the songs of an emerging Greenwich Village folk group known as Peter, Paul and Mary.

In the trio's new PBS show, Carry It On, they recall, along with the mentors Pete Seeger and Ronnie Gilbert and others, the beginnings of the cultural revolution of the 1960's when music became a unifying force amidst the hopeful, idealistic, and sometimes the turbulent movements of social change.

Do Peter, Paul and Mary still carry it on? No question, just watch and listen.

Tracklisting:

It's Magic
Mary Had A Little Lamb
Lemon Tree
If I Had A Hammer
Jane, Jane
Blowin' In The Wind
The Times They Are A-Changin'
When The Ship Comes In
I Dig Rock n' Roll Music
Like The First Time
The Wedding Song
Leavin' On A Jet Plane
El Salvador
Light One Candle
Puff, The Magic Dragon
I Know An Old Lady (Who Swallowed A Fly)
We Shall Overcome
This Land Is Your Land
For Baby (For Bobbie)
River of Jordan
The Great Mandala
Nobody Knows You When You're Down And Out
Invisible People
All God's Critters
Don't Laugh At Me
Jesus Is On The Wire
If I Had A Hammer
Freight Train