1. The characters the first time I saw an episode. I remember tuning in and seeing Abby on the screen the first time then after watching a bit more the rest came on
2. This is tough, but I think I am going to go with the scene in the last episode actually where Gibbs finally gets Joe Smith to retell what happened to him during Pearl Harbor. It's probably weird I picked this, but it was just such a sad and moving scene and not to mention the acting was just superb by Christopher Lloyd.