I recently upgraded my Series 3 to a Premiere box. After installation and setup of the box, cable card and tuning adapter I noticed that standard definition SDV channels would fail to tune in. Each time tuning to those channels the box would display "Searching for signal on this cable channel..." However all of the high definition SDV channels tune in with no issue. Since I tend to watch only HD this would normally not be an issue, however there are a handful of children channels that are SD only and am unable to tune to.
I have had time warner techs out to my house a couple of times now. In the process I believe we eliminated a lot of potential problem spots, but in the end I am back at square one with no idea how to resolve the situation. Along with the typical solutions of amplifiers and cable and connecter swapping we ran a direct connection from the tap at the street into the tuning adapter, switched out three different tuning adapters, switched out the cable card, verified that the cable card and tuning adapter were registered correctly in the TWC system and resent hits to the cards and tuning adapter. Yet with all that the SD SDV channels will just not tune in.
I have contacted Tivo and they are telling me there is a known issue with Cisco tuning adapters and Premiere boxes that Cisco has been made aware of and that a tuning adapter FW update is required. However, the Tivo agent told me that this was identified as a problem when the Premiere FW was at 14.x which was quite a while ago already. So my feeling is that is most likely not the issue since I have been unable to find others on the forums exhibiting a similar issue.
Yesterday the Time Warner Tech Supervisor reached out to me and suggested I clear and delete everything on the box in order to download a new channel map and reinstall the FW. I am open to doing this, but would prefer to know if that will fix it before I erase all my shows and season passes.
If anyone has any suggestions or experience with a similar issue I would appreciate the thoughts.