I'll make my own cheap instructions

SNES movies
1. Download the emulator -
http://www.snes9x.com/2. Download the ROM for the game - (Not too legal, Search for quality roms on google)
3. Download the .smv movie -
http://bisqwit.iki.fi/jutut/nesvideos/movies.cgi?systemid=24. Run Snes9x
5. Click File
6. Open ROM
7. Find directory you unzipped ROM to
8. Click File
9. Click Play Movie
10. Find the directory you unzipped movie to
Enjoy.
Same for NES movies, find Famtasia (The emulator the NES movies are for) Find the ROMs and watch the movies.
These instructions seem about right :/
EDIT: and I forgot instructions for people who don't want to DL an emulator :/
To get the .AVI
1. Download some BitTorrent client (I use BitTornado, google it)
2. Go to the movie you want to download
3. Download the Torrent
4. Double click the torrent file, if it asks what program to use, find BitTornado
5. Let the movie download
6. Watch movie.
Sorry if I messed something up (Like the name of BitTornado, if that is the name)