I record 3 types of signal:
1) Downrezzed HD from Dish and Voom.
2) SD Analog signals received OTA.
3) SD signals received from Voom.
The order above is also the recording quality order, though some Voom channels can look better than OTA Analog depending on the channel, the content and whether or not the local OTA Analog channel has good reception, which most of mine due. The only channel I have an issue with ocassionally is channel 2, I will get some wavy lines through it.
I do have a 16:9 screen, it's a front projection system with a 110" diagonal screen. The aspect ratio of whatever I record is recorded into the E85H in this manner. The 16:9 recordings from Dish are NOT vertically stretched so I get a letterboxed image and normally play it back using Normal mode on my pj, which will give me black bars all the way around the picture. If I wish to fill the screen, I have to Zoom and this degrades the PQ. I still have a 72" screen using Normal.
The E85H has 3 line inputs and I use S-Video directly from my Dish 6000 and Voom stb and select the appropriate input for recording. It also has a Gemstar TV Guide built in and does name based recording.
I do have the ability to set the Voom stb so it will output a vertically stretched image so the resultant playback will be anamorphic and it will fill the screen, however, since the image is SD to begin with, I don't like the quality of the picture when it fills the whole screen, so I leave it letterboxed and playback on Normal. With a regular RPTV, Plasma, LCD or other TV, the images would probably look great with Zoom.
Regarding Dish SD, they compress the crap out of their signals and look really bad on my pj, that's why I dropped their SD programming long ago. Voom's SD looks much better than Dish, though they do have a few channels that really stink.
If you want to investigate DVD burners more thoroughly, hang out
here, there are many posts about the different players here along with their pros and cons.
I hope this answered your question.