And it's under copyright, so we have to call them Adventures-of-your-own-choosing ;)
http://www.kickstarter.com/projects/weiner/trial-of-the-clon...
http://www.kickstarter.com/projects/weiner/trial-of-the-clon...
http://www.kickstarter.com/projects/weiner/trial-of-the-clon...
http://www.kickstarter.com/projects/weiner/trial-of-the-clon...
Copyright only protects the actual content/expression of the work of the Choose Your Own Adventure, not the name of the series.
Stallman has a nice article about the conflation of the "intellectual property" laws here: https://www.gnu.org/philosophy/not-ipr.html