Series connection was unilaterally changed to in-franchise Crossover. I've bowed out of forum discussions, but when you do stuff like this, it screws around with people that use those tags, and it took me quite a while to figure out what it had been changed to. Honestly, I don't care how you guys change tag names anymore, but at least use BURs for this like you're supposed to, and stop mass-changing tags manually.