Hmm, of the DS actors shown, seems Paul Michael was on camera the longest.
Do audience shots count?
But you're right - he was probably more a part of the special than Kate Jackson was with Charlie's Angels.
And was it just me, or did the special seem to focus heavily on the network's '70 sucesses (Brady Bunch, Happy Days, Laverne & Shirley, The Love Boat, Fantasy Island, Charlie's Angels, Roots, Rich Man, Poor Man, etc.)? Have the the last 20+ years really been that awful for them that they didn't deserve equal time?
It was almost as if the entire '80s hadn't even existed for them.