1. Best of Both Worlds Presents  TV - Concert
2. Ed Prentiss Show  TV - Broadcast show     
3. America’s Greatest Bands  TV - Broadcast show     
4. Playback  TV - Broadcast show     
5. Music Canada  TV Broadcast - Concert at CBC Canadian TV '67     
6. The Dinah Shore Chevy Show  TV Broadcast - One episode from 1961   (no info yet)
7. Voice of Firestone TV Broadcast - One episode with the Percy Faith performing two themes   (no info yet)
8. Chrysler Festival  TV Broadcast - Concert at CBC Canadian TV   (no info yet)

There should be some more but they are very difficult to find, since they are very old!
 
This great Percy Faith site has two WMV video files of Percy Faith conducting his orchestra: Mucho Gusto and The Song from Moulin Rouge. It looks great.

Also, there is a clip circulating in peer-to-peer circles of Percy Faith conducting his orchestra of his most famous arrangement: Theme from a Summer Place.