I was fishing around YouTube for Dragon Ball stuff, and I happened upon this neat gem! It appears to be from around August 2008 (because it continually promotes the individual disc releases of Dragon Ball Z movies 1 and 2, originally remastered for Dragon Box: The Movies), and features short interactions with random members of the Dragon Ball cast, a live reading of the scene where Freeza returns to kill Kuririn and shoot Piccolo (featuring the wonderfully talented trio of Toshio Furukawa, Masako Nozawa, and Miyumi Tanaka), Kageyama in France, and a live, a cappella rendition of "Makafushigi Adventure" by Hiroki Takahashi!! Get on it!
If anyone can give any additional information about this video, please do so in the comments!