Has anyone been to the wb studios??

this summer, i really want to go to l.a. and get a tour of the wb studies, the gilmore girls set. i was wondering if anyone has been there, and if they had, details on it. Also, is there an actual tour that is just for gilmore girls, not all of the wb shows. since all i watch on wb is gilmore girls, i just thought it pointless to waste my time seeing all of the shows. Thanks in advance!!