Hi Rob. I tried to program my 15-2116 with advance codes last night as I still had the instructions printed off from my 15-1994 but the steps have changed. Where can I find new instructions? Also I currently use plug and play or X-10 components under 167 on my 15-1994. I tried to enter 167 under CD on the 15-2116 but it would not take. I thought X-10 was just a CD code. Can I not use the 15-2116 for X-10? Also, does the 2116 have more or less learning and advanced code memory than the 1994? Thanks so much.