Here is a little suggestion from me, when there are longplays in multiple parts, put the parts in a playlist, then set the privacy of the playlist to unlisted, and when the longplay is added to the site, use the playlist url as the Youtube link, rather than just the first part of the Longplay. It will make it so much easier for people to be able to watch the longplays on Youtube. And since the playlists are unlisted, they won't be visible on the channel. For example I just made playlists for my Bioshock 1 & 2 Longplays:

https://www.youtube.com/playlist?list=PLKdDVjheyYJMe2Ye-SPFA9LLYfnmghWsg Bioshock 1 & https://www.youtube.com/playlist?list=PLKdDVjheyYJMC09odcH8P9BD0ktaZJ8uB Bioshock 2