My only experience of any kind of video walkthroughs video game playing recording is from TASvideos.org so please do not lynch me......

The main purpose of the site is for archival purposes right? So there's no need to supercede or obsolete existing videos. So the idea is to get longplays of ever game in every system is possible right? And if there's already a longplay of a game you're interested in longplaying it's best to submit a game in which no one has made a longplay of?

Thank you answering my questions. :)

and if there is a current longplay that doesnt show everything in that game you can do a longplay of that game too, or if the video quality of that longplay is bad because it was an old longplay made years ago it can be redone as long as you have better video quality when you do it

the answer is Yes. If there's any longplay that nobody made it, it's ok.