1. Why would I use PL when my reciever comes with PLII? Is it there just for nostalgia? 2. Why cant PLII work with stereo DVD's when it works with stereo satelite broadcasts? 3. My parents have a Pioneer HTP-210. PL only Produces center channel or stereo from the mains sound. Thier cable box has only 1 audio out...is that the problem and if so whats the solution. 4. Off topic...I have a dish net 301 package and Ive noticed the picture is bad (not enuf bandwith I guess)my question is should I upgrade to the 501? I think it produces DD sound but is it worth it being that the sound might be as bad as the picture...PLII from my Kenwood 504 is actually not bad with the Dish Broadcasts.