Ha! I'm sorry...I want to retract the advice I gave here. For some reason, my iPod touch (32GB) does work with the older iPod Universal Dock even for displaying slideshows (i.e., photos) AND videos.
See this thread I started:
http://discussions.apple.com/message.jspa?messageID=6867274#6867274
Supposedly (and even according to Apple's own documentation) the new iPod models (iPod Classic and iPod touch) do not work with the iPod Universal Dock to display videos.
I bought the iPod Universal Dock about 2 years ago and the package I bought came with the remote and AV cables. The AV cable is made by Apple and is Apple's own version that splits the signal into TV and 2 audio (L & R) signals.
Message was edited by: Conal Ho