Birds of Prey
includes the original pilot. The biggest difference between it & the one that aired was that they had a different actress for Harley Quinn.
I read a couple of weeks ago that the DVD release for Dollhouse
will include the original pilot episode, which will not air on FOX.
As mentioned, the Aquaman
pilot was released on a Best Buy exclusive DVD awhile back. I missed out on it.
And, not that it matters, but the Lie to Me
pilot episode is still available at Best Buy, and there's at least one scene different from the aired version. And I think they had a different actress for the daughter.