I'm planning on buying an HDTV soon and in my research, I've come up with a couple of concerns about HDMI and audio. I've read a lot of anecdotes about audio drop-out with HDMI. They range across brands and configurations. Is this as common a problem as it appears online? In reading tech specs for various TVs, I've often seen this listed under the connection types: "Analog audio input (for HDMI)". Why is this? HDMI transmits video and multi-channel sound. Why does it have a dedicated analog audio input on these TVs?