1- you can find EVERYTHING on Youtube...there is live footage of the Moody Blues concert I saw at Madison Square Garden in 1981...i’ve also listened to a lot of bootlegs of concerts i attended but didn’t know existed (like the first four Genesis concerts I attended starting back in 1978)..
2- I love the Moody Blues but Led Zeppelin is my band...every diehard fan of the mighty Zeppelin will tell you Presence is the most underrated album of the collection...any album with the song Achilles Last Stand does not qualify for the worst of anything...
As a fan of Zep, have you seen the YT videos of Robert Plant & Alison Krauss doing “Black Dog”? - Absolutely amazing...and I prefer it to Zep’s version.
https://www.youtube.com/watch?v=siMngU66j1Q