Here's a nice one that I always loved by Namco to promote the launch games for the PSX. I always laughed at this one. Great stuff. http://youtu.be/GqjqZWgVN0U
Here's another one. It's a montage of really old game commercials. http://youtu.be/bp8DY1Pn6QQ
Old Valis commercial http://youtu.be/ZLnPV6cJa70