Board Thread:General Discussion/@comment-4786757-20141217013835/@comment-5051564-20150111180740

Smash the Mirror was a two-parter. It was 408-A and 408-B, so it's two episodes. ABC counts them as two, so season 4 = 23 eps, so 100th episode is winter winale of season 5 (if they follow that pattern again). I understand everyone's confusion, but this is how ABC counts it. I hope this clears it up :)