When people assume that because you have experience with a particular type of electronics, you must know everything about all of them. You know what they say about assumptions... I just spent a thoroughly unproductive 45 minutes trying to figure out why my mom and stepfather's home surround sound theater system wasn't working. Funnily enough, they've had this thing for five years. It's been a useless dust gathering brick for that entire time period. For the sake of about ten feet ...