This video is an old NicoNicoDouga upload that has since been deleted. I do not recall the original uploader.
The video shows some footage from the final broadcasts St.GIGA did for the Satellaview service, including their farewell message to the subscribers.
Although this specific video was removed from NND, there are some alternative videos that have been uploaded by others and can be used for reference;
http://video.niconico.com/watch/http://www.nicovideo.jp/watch/sm7260226
http://www.youtube.com/watch?v=S9P1ISfPbsA
