That was a documentary from 2009.
There was an earlier TV documentary (prob 1995 or 1996) which basically culminated in him and The Splinter Group doing a very small (sort of village/church hall) gig, as a sort of lead up to them playing the Guildford Folk & Blues Festival (later called Guilfest) in 1996.
The band included Cozy Powell, and Neil Murray (Whitesnake)
I saw the prog, went to the festival and made my way to about 6 rows back from the stage. 'Whispering' Bob Harris came on to give a heartfelt welcome and introduce Peter and the band.
Here's a 1996 BBC doc, that includes the Guilfest gig, which gives a further insight into Peter Green, and his friends.
https://www.youtube.com/watch?v=rKinewwQYXg