Check LucasArts.com tomorrow for a trailer reel that hilights little clips from every game at the show this year. They were playing this montage trailer on the giant screen at the show along with the other "full length" trailers which are currently available at the E3 site.
Hopefully we'll be able to get a non-ShakyCam glimpse at RTX Red Rock and Full Throttle II, as neither of those games have full official trailers online right now. Though, I don't remember for sure if FTII was in the montage trailer or not. We'll see!
Update: I've been asked a couple times if this E3 montage video is the same as the LucasArts 20th Anniversary "game history" video they showed at the press screening before E3. As far as I know, this is a different video which focuses only on the current games (though I could be wrong). Hopefully they'll put the 20th anniversary video online at some point though.