Board Thread:Wiki-Related Discussion/@comment-24304025-20150718173803/@comment-26159109-20150729034420

The DVD's also has a list of the episodes. Smash The Mirror, part 2 might be listed as episode 9. Adam might get Questions about it on twitter and answer differently from what he used to. -so that wouldn't change anything?!

Yes, it was known that STM are two episodes, but you can see in that exact same thread that people chose to ignore it and still consider it as one episode. By the way, that's why they were still considered as the 74th episode only.