it is a directv dvr plus and as far as picture quality it is good enough for me. from what i have been told my box is what is sending me an analog signal. i can believe that and i can understand why directv got stupid on me. it would mean they would have to replace the box.
Since that is a standard definition (SD) box, it is intended for use with an analog television and it converts Directv's programming from digital to analog. HD receivers also have higher resolution digital (HDMI) and analog (component) outputs for use with HD sets.
There are three types of output connections:
1. S-video (best quality)
2. Composite (yellow RCA jack), nearly as good
These use RCA connections (red/white jacks) to audio input of TV. On DVRs there is also an optical digital audio (TOSLINK) output for use with A/V receivers which supports Dolby Digital 5.1 for that programming which is suitably encoded (only a few premium channels for SD).
3.RF (F-connector, coax to TV's antenna input) lowest quality.
For the best picture, you should use a S-video or composite connection if your TV has a suitable input.