Cartoon Network used to have a block in 2009 called CN Real, which aired original live-action programming that everyone hated. Some shows, like Dude What Would Happen and Destroy Build Destroy, would get multiple seasons, while others didn't even make it past their first season. These shows, which include The Othersiders, Survive This, BrainRush, and Bobb'e Says, used to be available on iTunes before Cartoon Network removed them, which is strange, considering that Dude What Would Happen, Destroy Build Destroy, Level Up, Incredible Crew, and other live-action shows are still on iTunes. There are clips and promos of the shows available on the Internet, but there doesn't appear to be full episodes available anywhere. Would it be safe to consider these shows lost?
I'm pretty new to this site, so I don't know for sure if they'd count as lost, but I personally would consider them at least partially lost if the full episodes are nowhere to be found.