Originally Posted by bass462
I haven't used bluetooth very much, but from what I understand most bluetooth devices can only be paired with one or two devices at a time, and can only be used with one at a time. This means to use a single keyboard with 5 different devices you'd either need to find a bluetooth keyboard capable of being paired with that many devices or you'd have to constantly re-pair it with the different devices. Something like this
maybe, which can pair with 6 devices. And, of course, getting all the devices to use bluetooth (I suspect a couple of them cannot; and a bluetooth dongle/keyboard is not the same thing as a RF keyboard; only the later appears to be a USB keyboard to the host device). The WD might accept Bluetooth; the Laptop and PS3 can; the other two probably cannot.
Also, just because the TV has a USB port doesn't mean that it can accept just any USB device; most TV's only support USB external storage devices for playback of pictures and, sometimes, movie files. And most keyboards do not have a universal remote built in.
A USB KVM would probably do you more good as it will give you more options for a keyboard and mouse/trackball which will work for you. The problem there is finding a 5+ port KVM that supports the video options you need (is everything HDMI?) that doesn't cost you an arm and a leg.