I have a very strange problem! It occurs on multiple Tivo's (4) and multiple TVs (2). (Primarily, I want this to work with a TiVo Bolt and an LG TV). I got a new LG TV and wanted to use old Logitech computer speakers for sound. I can also use the speakers of the new TV, but I wanted to experiment and see which I liked better. But the new TV only has optical digital audio out, and the old Logitech speakers need a 3.5 mm jack (headphone), nonexistent on this new TV. So I needed two new pieces of equipment. The first is a digital to analog converter (DAC). That works fine for converting the signal. But then I had no way to control the volume with a remote. That meant I had to get an MCM 50-8394, line level volume control with IR remote. It only has three buttons, volume up, volume down, and mute. I'm able to plug the headphone plug from the speakers into that (with various cables). This setup works well! However I have one issue when using my TiVo remote. Continuously holding down the down button (direction, not volume) turns the volume down! More details... There is a blue button on the MCM device that shows when it is receiving any of the three signals that its little remote can control (volume up, volume down, mute). But whenever I hold down the down button on the Tivo remote, that blue button lights up, indicating that it is seeing that signal. It actually does accomplish the repetitive down button action that I am trying to accomplish, e.g. it repeatedly goes down in Guide or My Shows. The problem is that it somehow is seen by this MCM device as volume down. And the volume is repeatedly adjusted down as long as I hold down the direction down button. (A quick/single press of the down button is not seen by the MCM. As far as I can tell, no other buttons or held down buttons cause any problem). I tried a DVD player connected to this TV. Continuously holding the down button down on that DVD remote does not have any effect on the MCM, i.e. the volume does not go down. I've also tried this with a Harmony remote. Same incorrect results. Does anyone have any insight into why the TiVo is sending a recognizable volume down signal to this MCM device?