User blog comment:DestinyOrNot/Should Percival be a Knight?/@comment-4879894-20120411120001/@comment-4623180-20120411143715

More backstory behind the knights was a strong demand, and the producers have acknowledged that in various interviews. No doubt this would have been one of the most prominent criticisms of Series 4. I also read somewhere, you can probably find this by looking through the Series 5 page, that some of the knights are shooting separately and haven't seen each other for a while, which suggests they're doing something different with them this round... not grouping them together could mean putting them in different situations which will allow us to explore new dimensions of their character! Let's hope.