It looks like according to this FAQ at tivo.com I can't do this. My common sense tells me it shouldn't make a difference what TiVo it is, so long as the TiVo can be networked to ethernet, I'd've thought it could be networked with MOCA. That's bad news to me if I can't do this. Here's my situation: In my house I have Time Warner cable TV, Timer Warner cable based internet (aka Roadrunner), a wired/wireless router, and 4 TiVos: (1 Premier, 1 TiVo HD, and 2 S2 single tuner models.) The TiVo HD is mine, and the other three all are my wife's. We also have an NAS and use pyTiVo to archive her shows to the NAS. Also, all 4 TiVos are wirelessly connected, because my house has no ethernet wiring in it at all. Our problem: pyTiVo often has glitches that we think are caused by using wireless networking. Often a show will start transferring, and get stuck in the middle, and then I have to stop and restart the pyTiVo server, and requeue up whatever shows my wife wanted to archive. Plus wireless transfers are slow. I was hoping to solve the problem with MOCA. The good news is I haven't purchased any MOCA adapters yet, and wanted to confirm if MOCA will work for us before plunking down the dough. The 2 TiVos my wife considers most important for setting up with a wired network connection are her two S2 (single tuner) TiVos. She reasons that copywrite protection aflicts her Premier, so she can't archive a lot of those shows anyhow, but she'd like to go to town with her S2's. So am I out of luck with a MOCA solution?