1. Lip sync delay is used in conjunction with video sources that do significant video processing (which can often produce a delay in the video signal to complete the processing, leaving the audio a few dozen milliseconds ahead of the video). The 1070 offers a similar lip sync delay to the Model 990, with a separate delay setting for each input.


2. DVI switching allows you to switch between two different video sources using either DVI or HDMI video (the two digital video options) - HDTV's typically offer either one DVI or one HDMI input, but between upconverting DVD players (which take a DVD's native 480i video and produce 720p or 1080i video), HDTV decoders (cable, satellite, or over-the-air), and eventually HD-DVD/Blu-Ray/PS3 sources it is becoming pretty easy to have more than one source that uses either DVI or HDMI.

3. Component video switching was not included on the 1050 because of the cost associated at the time. Today it has become standard on surround receivers much above the $200 price range. In the video connection hierarchy, you start at RF (the "coaxial" cable TV connection), then go up to composite, then s-video, and finally component (which is the only way aside from digital video - the DVI and HDMI we talked about above - to pass progressive scan and HD video). If your display has a component input, it's your best bet (although DVI and HDMI can do as well or even better with the few sources that offer it).

4. Can never hurt to ask.

Oh, and the next logical question is "what's the difference DVI and HDMI?" DVI is a digital format for video signals that was first used with LCD computer monitors. HDMI was developed later as a unified digital audio/video interface, and it borrowed DVI's video structure while adding a high bandwidth pipe for digital audio. The audio side of HDMI is still being a bit tinkered with (currently it will carry DVD-Audio but not SACD; a future version will add SACD and new audio formats for HD-DVD and Blu-Ray), but the video side is established and is pin-for-pin compatible with DVI. This means that the 1070's DVI switching works with both DVI and HDMI connections.