S3's OmniChrome S4 + S3's response and further insight
Snip: "Overall, S3 still need to do some serious work with OmniChrome to bring it up to scratch. If you can suffer the downsides, great; it's cheap and does the basic TV-tuning-with-good-softwre-and-remote job fine. But those downsides are pretty dire in a 2004 TV tuning product. HDTV input and output don't save it for me. If you have the basic facility to actually record or watch HDTV signals properly, you've got the need for something more than mono audio from the TV tuner."