The 'Classic Albums' series is of variable quality, but always interesting for people who own and love the albums.
The least useful to me are those where the artist has sadly passed on, such as Nirvana's Nevermind or Jimi Hendrix' Electric Ladyland,so you don't get any input from the key artist behind the record. However, they're all still worth a look and the series is good value.
This program could almost fall into that category, but the DVD features exerpts from interviews which John did at the time the album was recorded, so you get his comments on the proceedings.
As usual with this series, you get to listen to alternate takes, how the sound mix was done etc. The conversations with Ringo and Klaus Voorman are fascinating and the extras are worthwhile.
For those interested in the making of 'Imagine', the album which followed this one, the 'Gimme Some Truth' DVD is worth a look.