Two upgraded videos of Led Zeppelin performing in 1977 have been uploaded to YouTube.
The first video, uploaded by YouTube user Mark Zep, shows Led Zeppelin performing at the LA Forum on June 22, 1977:
And the second video was uploaded by YouTube user ledzepfilm. It shows Led Zeppelin performing in Greensboro, North Carolina on May 31, 1977. It’s a slight upgrade to this video that was uploaded from the official Led Zeppelin YouTube account: