In this original pilot, the character of Kevin Walker (originally named Bryan) had a son before coming out, and was battling his ex-wife for custody. In the re-shot pilot, the son, ex-wife and storyline was dropped.
In this original pilot, the characters of Joe and Sarah (originally named Jed and Nora) had an autistic child played by Jimmy 'Jax' Pinchak. In the re-shot pilot, the character was dropped. And their surnames were changed from Traylor to Whedon.