Very interesting, Gothick. Even though the TGG release has been discussed here, your friend provided info about the current availability of the set and his YouTube video, so that is new. Thanks for sharing.
I do hope your friend's YouTube stuff will remain there. Back before YouTube even existed I once created a Web site with videos of a lot of the stuff he's shared and a certain fan who liked nothing better than to tattle to Jim Pierson tattled to him and before I knew it the host of the site deleted it without notification to me or asking me to do it myself.
However, I would remind people that all of what your friend has posted to YouTube and then some has been posted here in the topics for the '91 series' Watching Project that we did back in '08. Those topics are all on the "Current Talk '08 II" board and can be easily found by sorting the board by Subject and looking for topics beginning with "Discuss: '91 Series" on page 6 and "Watching Project #2: Promo Videos" on page 10.
The commercials from the NBC run are not posted here, though.