I have my 622 connected to my surround with the optical cable. I want to also connect a Blu Ray player to the surround system, but only have one input. I was looking at an optical splitter, but there was one poster that was unable to use the splitter with his satellite DVR because the connection to the optical output was not turned off with the unit and there was interference. Does anyone know if this would be a problem with the VIP 622?