I have been using my 515 in an unusual manner, so Wajo suggested I post this, an explanation of what I am doing in case it of interest to others.
Using the Magnavox 515 as a Digital Tuner between DirecTV and Non-Digital Panasonic DVD Recorder for Superior Editing Purposes
I have been been getting all my TV from DirecTV (with local channels) for many years. There were programs on local subchannels that DirecTV just did not carry. I found a way to record these shows and other important stuff, many of which appear in blocks as "marathons", using a 515 as a digital tuner. The signal path goes from the antenna to my 515, then to my Panasonic recorder(s) so I can use their superior editing capabilities. None of the Panasonic DVD recorders I own have a digital tuner to record the shows directly.
Old Process
I had been recording everything I wanted to watch on my DirecTV DVR. I would copy the programs I wanted to "save" from the DVR to one of my analog Panasonic DVD recorders.
However, as I said, there were programs I wanted to record that were on subchannels that DirecTV does not carry (but were were available OTA), so I could not program my DVR to record them. I set up an antenna, but it turnd out that some of these shows were on at very inconvenient times to watch live, and many of them are shown in blocks of two, three, even four hours. That is very inconvenient to sit through in one live marathon viewing session, and again, I couldn't record them with my analog Panasonic DVD recorders.
New Process
So, I purchased a Magnavox 515, connected the antenna, did a channel scan, and HEY! got all of the "local" digital channels I get with DirecTV, PLUS all the subchannels that DirecTV does not carry. However, the Magnavox just doesn't have the editing capabilities I am used to with the Panasonic. I do LOTS of complex editing and "fiddling around" with titles I want to save on optical media. So, the problem was, how to get the content from the Magnavox to the Panasonic.
The solution was absurdly simple.
I tried -RW disks, but was unhappy with the results, so after consulting with Wajo in a few PMs, I started to record everything I wanted to save to HDD in HQ mode on the Mag 515. This resulted in as high a picture quality as possible. I then connected an S-Video+audio cable from the back output of my 515 to a line input on the Panasonic, made sure Progressive Scan was OFF (or no output from composite or S-Video on the 515), then just played back the recorded program on the Magnavox while simultaneously recording it on the Panasonic. Simple! Any degradation in the picture quality turned out to be so small, it was all but unnoticeable
Once in the Panasonic, I can separates the single title into individual episodes and, using the Playlist feature, I can further edit and title them appropriately. When I get a disk full of episodes, I save them to a DVD.
Moral of This Story
In essence, I'm using my Mag 515 as a DVR rather then a DVD recorder. It does this very well, and I'm is very pleased with the ability to record off any channel I can get from my antenna. The 515 has proven to be completely reliable (never missed a recording so far) and the picture quality is excellent.--as good as my recordings made from my DirecTV DVR. Of course, this is all SP.
One last thing, as I am learning how to edit recordings on the 515, I am starting to use it as it was intended, as a DVD recorder, and I expect to be using it that way more and more. Since I first set this up, the number of channels I want to watch but can only record on the 515, not my Panasonics, has increased (new subchannels appear ) and I'm using it more. It has turned out to be a very cost-effective purchase and an important part of my video suite. Of course, my "video suite" consists of just a big stack of stuff with a rats-nest of wiring behind it.
Edited by Church AV Guy - 1/15/13 at 1:31pm