I have one of the original Series 2 Tivos with a lifetime subscription. A few months ago, I switched to Directv and as a result, my tivo has gone unused because my non-HD Directv box does not have the serial connection in the back (I've found the IR adapter's reliability to be spotty at best). I spoke with Directv and they said they no longer manufacture the boxes that are compatible with stand alone Tivo units, but I could find some on the internet, but they couldn't tell me which units they were. Does anyone know which Directv units work with the original Series 2 Tivo when connected with the serial cable? If I knew a model number, then I'm confident a quick search on Ebay would find what I needed. Thanks in advance!