Board Thread:Wiki-Related Discussion/@comment-226477-20151201052644/@comment-4453062-20151202235117

The Prison Tower title card is used for the separated version of 421 and 422. It appears that way on iTunes, Hulu and Netflix. The same thing happened with "Snow Drifts/There's No Place Like Home." The original combined airing had the swan title card for the 2nd half, but the separated versions of the episodes both had the time portal title card. Oddly enough, the Blu-Ray and DVD version of "Snow Drifts/There's No Place Like Home" is the separated versions, unlike the Season 4 finale and Smash the Mirror on the Season 4 Blu-Ray.