I know the timing isn't perfect for serious stuff, but it was brought up and I decided it was time to deal with this issue :)
We don't list 'Specials' on Next Episode.
The reason is that most of the specials are recaps of previous episodes and will be just cluttering our episodes list, making us constantly check if the episode is something new (which it most likely isn't).
Take a look at Doctor Who. I just enabled 'Specials' for that show, and it's a great example why Specials are ignored.
What do you think of Specials? You want them in here or do you think they should be ignored?