This past Saturday, November 27th, an episode of The Super Hero Squad Show entitled "Double Negation at World's End" written by Eugene Son referenced X-23. Sorry for the late update on this as I haven't had time until now to watch the episode myself on the DVR.
In a quick scene, Wolverine mentions he doesn't do amusement parks, which by itself means nothing, but it did catch my attention because of his recent escapade in X-23 v3 issue 2. Not long after that as he pulls out his team-up checklist, he mentions X-23 by name before admitting he's never teamed up with Herbie by himself until now. If you are able to pause the episode, you can see her on the checklist too with a check in the check box.
Overall a pretty enjoyable episode. Plus it's nice to see small references to the X-23 ongoing comic. The episode further acknowledges it at the end in a special bonding moment between Wolverine and Herbie.
This episode also featured a special brief cameo of Avengers: EMH IronMan as well. Keep up the great work on this show! The Super Hero Squad Show has been getting progressively better each episode with more tongue in cheek mockery at all things Marvel, but hey, it's all in good fun.
The Super Hero Squad Show airs Saturday mornings on Cartoon Network.