The standard living room entertainment setup generally consists of a TV as the centerpiece, with some peripherals providing various kinds of support. This can include popular streaming devices , Blu ray players, audio equipment, and gaming consoles. For most people, one screen is enough to get the whole picture. But plenty of setups call for a little more, and if you want to access those peripherals across multiple displays, an HDMI splitter will come in handy. There are some disadvantages to...