I not trying to be a to be a wise-guy, because everyone may not be aware they can search for things online.
1. go to www.google.com
2. type in a search, for example: "TKD OR 'tae kwon do' +forms +mpeg"
3. look around at the links provided.

if you can't find what you are looking for on your own, then ask. general requests like "anyone got videos of karate?" will probably go ignored.