Adam has an A/V receiver, but it doesn't have HDMI. Can he still use it? Scott says not really, at least not for video. HDMI is the standard connection now in HDTVs, and if it doesn't have it, then he'll need a newer A/V receiver to handle the connection. If it had component, he may be able to get away with it, but it's not likely, and it still wouldn't be digital.
Adam will want to get a model that is future proofed with connections that can pass through 4K UHD signal, because eventually, he'll get one with a 4K source. The sub woofer is also causing things to shake and rattle a lot. Scott recommends putting a pad or carpet underneath it and in front of it to dampen out the vibration.