The original pilot episode of 7th Heaven that never aired was just like the one that did air with a few minor changes. Many scenes in the original pilot episode were cut. You can tell by the pilot episode that did air. In the first half of the episode, the Camdens house is very different from usual (especially the kitchen), but in the second half of the episode the Camdens house (especially the kitchen) is back to what it usually is in most episodes. Some scenes were cut and re-shot again that would fit the pilot that did air. Unless the Camdens had two different kitchens the show was filmed out of sequence. (thetvdb.com)