The season 1 finale, "Kobol's Last Gleaming, Parts 1-2", went through a number of changes according to the Podcast commentary for both episodes. Some of these early differences include:
1. Part One was to conclude with the Raptor crashing and Part Two would end with Starbuck stealing the Raider to finish the finale with a season-ending cliffhanger. This was changed when the original pacing wasn't working.
2. Originally, the ruins on Kobol were supposed to be a huge temple that was mirrored on Caprica. This was abandoned due to cost constraints.
3. What Baltar and Number Six experienced inside the ruins on Kobol went through a number of changes. Originally, Ron D. Moore proposed to the other writers that there was supposed to be a bright corridor of light. In a later version, there was to be complete darkness punctuated with music from a song recognizable by both the audience and the two explorers. Then, Dirk Benedict (Starbuck from the original show) was supposed appear and say something like, "Hi. I'm God." followed by TO BE CONTINUED... However, the other writers quickly disparaged the idea as implausible, and Ron D. Moore reluctantly agreed.
4. One concept that the writers liked, but were forced to abandon was the idea that the interior room of the ruins was to be located in "otherspace" or in a different spatial or dimensional location.