We did the standard tour and really enjoyed it. They have a Classics tour that wasn't at a good time for us that we would've enjoyed but the kids wouldn't have. Agreed, it's a great way to spend half a day. You start out at the main building where you view an exhibit of the history of Warner Brothers. You then watch a short film about the studios. You are then driven around the studios which is great. They stop off at different areas and buildings. We got a kick out of the town square as DD16 was really into Pretty Little Liars and the church and other places were used in that. They take you into a working set so you can see how that is used. I can't remember the show but it was set at a high school. You then arrive at the Friends lot which has the cafe and Friends store. You can tour the sets and get your picture at the couch of the Central Perk set. You then get back on the tram and it ends at the Harry Potter and DC Universe exhibit. The WB Store is where you leave which is right where the tour started.
There are more expensive and longer tours where you can go to the props department and see more of the classic props and outfits. I may have the order wrong but that gives you a general idea. We enjoyed it a lot more than the Universal Studios Tram tour. We now chuckle when we watch shows or commercials and see the places we toured featured in them.