I have a new 37" Magnavox LCD HDTV (37MF231D), a Motorola Digital DVR (QIP6400) and an RCA DVD receiver that also has surround sound and radio tuner (RTD218). I am not able to get surround sound when watching the tv, however the surround sound works when I watch dvd's, listen to cd's and the radio. I have an HDMI cable going from the tv to the DVR but am not sure what I am doing wrong with the rest of it since it works in certain applications. Could it be a simple setting on my tv-I have read through the manual and cannot find anything to address my problem, or is it something else perhaps with my cable connections? Thanks
None of the cable you have will work for a digital connection. You will need either a Coaxial Digital cable (RCA) or an Optical cable. Red ,white (audio) and yellow (video) are composite anolog RCA connections, the red,blue and green are component video wires (RCA) for HDTV you also need red and white for audio with these cables.