I know many people on this board have tried and use a DIY solution for 6.1. Assuming you have a 5.1 Receiver/Prepro, you basically can do this 2 ways: (1) Buy a dedicated rear center channel device like the ones from Parasound or Smart Devices; or (2) Just use a DPL receiver/prepro to do the processing for you. I know that you can derive rear center channel information by using discrete 5.1 sources like DD or DTS. My question is, can I derive some psuedo rear center channel information from DPL sources like Cable TV or a VHS movie? You guys that use/d an old DPL receiver for the rear center, did you get rear center signal if source material was DPL? Thanks. Rich B.