I refer to Shadows On The Wall, the original story bible developed by Art Wallace in early 1966 for the DS pilot. It details the early storylines for the planned series, with sketches of the original characters Liz/Roger/Vicki/Carolyn/Joe/David/Sam/Maggie/Burke/Bill Malloy. If you haven't read it yet, get a copy ASAP. I think you can get a copy thru the DS Festival website, or get a used one by eBay.