I'm tired of my tiny TV speakers. I've been wanting to get a home theater system for a long time. But I don't really want all the complication of having to set up 5 speakers and wiring them. So I checked out this options: - Yamaha S400BL - Yamaha S401BL I don't care that much about the sound quality. But I do want to have a system that can accept my PS3, Apple TV and DirecTV. I wouldn't want to be changing cables each time I use either of those. And this is were I need help. I have no idea how to know if these things accept three devices at one time. So, I would appreciate if anyone could explain me how this works. Thanks.