Summary: I purchased this device to hook up a Cablevision box plus a standard DVD player to an Olevia LT30HV HDTV. This earlier model HDTV has only one set of component inputs, no HDMI but DVI. I noticed no degradation in the signal from the DVD player (480p) but there was definitely an inferior signal with high-definition TV channels (1080i). Will be exchanging this unit for an Impact Acoustics 3-Play.
Pros: Small size, 4 inputs, learning remote capable
Cons: Degradation of high definition (1080i) signals.