So I recently decided to transition from OTA to Time Warner last week in order to get their "Starter TV with HBO" package, and I've been having some issues with my service that neither Time Warner or Tivo can figure out. The main problem I have is that my HBO channels will sometimes get video but no audio, or audio but no video, and even occasionally fail to "tune" to the channel. Unplugging the tuning adapter solves the problem, but unfortunately that downgrades the signal from HD to SD, which is obviously not a real solution. I am assuming this pinpoints the tuning adapter as the problem, but after talking to technicians with Time Warner's dedicated Cablecard hotline, they say it could be any one of the devices in the chain (Tivo, Cablecard, or tuning adapter). I've gone to my local office and swapped out the Cablecard and tuning adapter, but the problem persists. Here are the facts: 1. I'm in the Raleigh/Durham, NC market. 2. I re-ran guided setup to update the channel map for the Cablecard according to the Tivo instructions. 3. The Cablecard hotline techs spent a considerable amount of time with me on the phone and ran all sorts of signal strength tests on my equipment (before and after the swap) and said that everything checks out okay. 4. My firmware on the Cablecard and tuning adapter are both up to date. 5. I've ruled out my sound bar (no audio directly from TV speakers either). 6. I've swapped out my HDMI cable for another one, and the problem still persisted. 7. I've hooked the coax out from the tuning adapter directly to my Tivo as well as splitting the signal beforehand, and sending one cable to the tuning adapter, and the other to the Tivo, and the problem still persisted. 8. All my coax cables are Quad Sheild RG6 cut to length and capped by myself, and I do know what I am doing. My conclusion is that Switched Digital Video and the tuning adapter is the root of the problem and never should have been implemented as it adds one more layer to cause problems on top of the Cablecard, which can have it's own problems. The fact that other markets get along just fine without SDV makes me wonder why my region decided to implement it in the first place. So basically, if I can't reliably tune to a channel for live TV or recording, then I might as well just stick with my antenna for the local channels and use HBO Go on my Apple TV for my HBO fix. If anyone has any suggestions or tips, feel free to chime in, but I'm going to swap out the tuning adapter one more time before I give up.