The Yardbirds played a crucial part in the history and development of rock. The Jeff Beck Group with Rod Stewart, Led Zep, Clapton's many excursions, and even Renaissance(!)were all outgrowths of the band.
This video tells the story very well. Lots of classic, though incomplete, live footage is included and almost all the original participants weigh in with facts and anecdotes. The video is well-edited and easy to watch. Not for fans only this piece is recommended to all rock/pop music lovers but probably essential for true Yardbirds fans.
Additionally, this edition includes four complete live performances from the final incarnation of the Yardbirds - Jimmy Page, Chris Dreja, Keith Relf, and Jim McCarty - which is also sold separately. So it has added value.