off the top of of my head, I think the longest Eyes is from a fall 94 show, though I believe there's a couple minutes of it where jerry's fixing a broken string... I think 11/5/79 is the longest pre-90 Brent era version, though there are a couple 74's that may come real close because of a space jam tacked on at the end (6/30? 9/11? 10/16?) -- I think 9/11/74 has almost 10 minutes of on/off Eyes teasing and jamming before they legitimately start the song. 3/31/91 may be the longest of the early 90's versions, but I don't remember for sure. So many good ones! Can't say I recall any Eyes that sandwich another song in the middle, though... 7/17/76 Eyes is sandwiched inside an Other One.