It's true that much of the streaming content is not HD, but Netflix goes to interesting lengths to get the original sources and re-encode them for a better streaming experience. <a href="http://blog.netflix.com/2008/11/encoding-for-streaming.html" rel="nofollow">http://blog.netflix.com/2008/11/encoding-for-streaming.html</a> has the details. They're not just taking the original SD broadcast signal and digitizing it. So even though it wasn't made in HD, in many cases it looks better than it ever did when it was first broadcast, or even than seen on DVD.