I’ve noticed some people are having a hard time getting this to work, so I decided to write a more complete, detailed guide. Original instructions and support can be found in the Snapstream forums.

Standard Disclaimer: I do not work for and am not professionally associated with Snapstream or SiliconDust, and do not assume any personal liability as a result of this guide.

To view larger screenshots: Click the thumbnail, then click “View all sizes” under “Photo Information” to the right of the photo.

1. Connect the HDHomeRun to your network by plugging in an ethernet cable from the HDHomeRun to your home router/switch.
2. Ensure the A/C adapter is plugged in, and the HDHomeRun is powered on.
3. Download the HDHomeRun software.
4. Install the HDHomeRun software and firmware by double-clicking the installer file you just downloaded.
5. The setup wizard may prompt you to install .NET and VLC if they are not already installed. Be sure to allow this.
   
6. Confirm the following from the HDHomeRun Setup window: Device Scan (complete), Windows BDA (installed), HDHomeRun Firmware (installed, the screenshot says “no change” since I already had the firmware installed), HDHomeRun BDA Driver (installed, again I already had it installed).
   
   • If the channel scan did not run, then open a command prompt (Start > Run > type “cmd” in the Open box), and run the following to get to your HDHomeRun folder:
     cd "C:\Program Files\Silicondust\HDHomeRun"
     Run the following command to start a channel scan:
     hdhomerun_config FFFFFFFF scan /tuner0 channels.txt
   • If the firmware was not installed, then you can manually install it:
     1. Download the firmware if you haven’t already.
     2. Launch the “hdhomerun_config_gui.exe” from wherever you installed the HDHomeRun software. Default is “C:\Program Files\Silicondust\HDHomeRun”.
     3. Go to the “Upgrade” tab
     4. Click the “…” button and select the firmware file you downloaded.
        
7. Test to ensure the HDHomeRun is working properly. Launch the “hdhomerun_config_gui.exe” from wherever you installed the HDHomeRun software. Default is “C:\Program Files\Silicondust\HDHomeRun”.
8. Select “qam” from the channel droplist.
9. Click the “->>” scan button to find available channels
10. Once a channel has been found select something from the “Program” droplist.
11. Click “Launch VLC” to view the selected program. You should see the program playing in VLC.
    
12. Complete the scan to ensure you can find and view all your unencrypted channels. The station callsign is typically populated in the “Program” droplist to make things easier. However, the callsign for my local NBC station (KNTV) was not displayed, so I had to manually scan for it. Be sure to write down the “Channel” and “Program” numbers for each station you have to manually find.
13. Now that the HDHomeRun is installed and working you need to create your .remap file. To make this easy download the QAM Mapping Utility.
14. Unzip the downloaded file and copy the “HDHRQamMapper.exe” to your HDHomeRun software install folder (default: C:\Program Files\Silicondust\HDHomeRun).
    
15. Run the QAM Mapping Utility from the HDHomeRun folder by double clicking the “HDHRQamMapper.exe”.
16. Click the “Import” button, and select the “channels.txt” file (created from the HDHomeRun channel scan). It should be in the HDHomeRun software folder.
    
17. The values (Virtual Channel, Physical Channel, Description) for your unencrypted digital channels should be pre-populated. These values can be manually changed if you wish. If you had to manually scan for missing channels be sure to add a Virtual Number, Physical Number, and Description for each. Refer to the “Channel” and “Program” numbers you wrote down in step 12. If you have no idea what these numbers are, then read on:
    1. First, you need to understand what these numbers represent. The “Virtual Channel” is broken down into major and minor numbers. (Ex: In Virtual Channel “5-1” the major number is “5” and the minor number is “1”). The major and minor numbers must be in the range of 1-99. The Physical Channel number must be in the range of 2-69. You cannot have two or more channels that use the same major channel number. If you have several channels that use the same major channel number, then change their Virtual Channels (Ex: 9-1, 9-2, 9-3 virtual channels should be changed to something like 9-1, 10-1. 11-1).
       
    2. Second, I recommend you re-number your Virtual and Physical channels to how you want them to appear in the program guide. Keep in mind that these channels will be bound to your HDHomeRun tuners only. If you also have ATSC (over-the-air) tuner(s) in your Beyond TV setup, then you may have duplicate channel numbers in the guide, which could cause confusion. For example, I have ATSC tuners, and FOX is listed as channel 1021 in the program guide. I also have FOX (callsign KTVU) on my HDHomeRun tuners. It has a default Virtual Channel number of 2-1 in the QAM Mapping Utility, which will translate to 1021 in the program guide. I don’t want 2 channels with 1021 in my guide, so I simply change the Virtual Channel number in the QAM Mapping Utility for FOX (KTVU) to 72-1, so it will appear as channel 1721 in my program guide.
       
    3. If you don’t mind having duplicate channel numbers (1 for your ATSC tuners, and 1 for your HDHomeRun tuners), then feel free to leave the Virtual Channel numbers alone. You can change the callsigns for your QAM channel lineup in Beyond TV to help distinguish them in the program guide. More on that later.
18. Once you’re satisfied with the numbering in the QAM Mapping Utility, then click the “Save” button.
19. There should now be a “hdhomerun_bda.remap” file in your “C:\” drive. Open it with a text utility like Notepad to verify the contents match the QAM Mapping Utility if you wish.
    
20. If you do not already have Beyond TV 4.6.1 RC1 installed, then you can download it from the Snapstream beta site. If you are not a beta tester, then you can easily sign-up for access.
21. Install Beyond TV 4.6.1 RC1 on a PC that meets the system requirements.
22. Once Beyond TV is installed you need to create a new custom channel lineup.
    
23. Click the “Import Lineup” button.
24. Select a lineup that contains all the digital channels you receive with your HDHomeRun. I selected my local digital antenna lineup.
    
25. Check off all the channels that you receive with your HDHomeRun, and click the “Import” button.
26. Enter the Physical, Major, and Minor channel numbers that correspond to each channel in the lineup. You can find this in the QAM Mapping Utility. For example, in the QAM Mapping Utility my local FOX station (KNTV) has a Virtual Number of “72-1” and a Physical Number of “2”. In the Snapstream.net custom lineup tool I set the Physical Number to “2”, Major Number to “72” and Minor Number to “1”. Again, this will translate to channel “1721” in the Beyond TV program guide.
27. I also append “QAM” to each of the channel’s callsigns (Ex: KNTVDTQAM), which will appear in the Beyond TV program guide. It helps to further distinguish them.
28. Give your custom lineup a name, and ensure the “Lineup Type” is set to “Digital”, then click the “Save and Exit” button.
    
29. Your new lineup will appear in the “Lineup Settings” section of the “Settings” page in Snapstream.net. The “Preview” link will not display any of your channels. This is normal.
30. If you already had Beyond TV installed prior to using the HDHomeRun, then go into Beyond TV and force a guide update (Settings > Snapstream.net Settings > Download Snapstrem.net Program Guide Data). If you’re new to Beyond TV, then don’t worry a guide update will occur after you complete this setup. If not, then you can always force an update later.
    
    
31. Once the guide update is complete shutdown Beyond TV, if not already, then run the Beyond TV setup wizard (Start > All Programs > SnapStream Media > Beyond TV > Beyond TV Setup Wizard).
32. Keep clicking “Next” and select “Add a New Source” from the “Video Source” page, and click “Next”.
    
33. Select “Antenna (Digital)”, then click “Next”.
    
34. Select one of your HDHomeRun tuners from the “Capture Device” page, then click “Next”.
    
35. The custom lineup you created will probably not have a name, so select the black value from the droplist, and click “Next”.
36. Abort the channel scan, select all the channels, then click “Next”. (the screenshot shows extra channels that I don’t use)
    
37. Verify you can tune all your channels, then click “Next”.
    
38. “Add a new source” again, and run through the same steps to setup your second HDHomeRun tuner.
39. Select “Done”, click “Next” until you complete the wizard, and start Beyond TV.
40. Go into the program guide, verify all your QAM channels are there, and enjoy watching HD via cable in Beyond TV! (Yes, I know the screenshot is of “The View”, but that’s all that was on in HD when I wrote this. Will update later with a more manly screenshot.)
    
    

Tips / Known Issues:

1. Live TV may take awhile to start (approx 20 seconds or longer). Adjust the “Header Timeout” value in the Web Admin to “3” (Settings > Advanced Settings > Video Playback Settings). The Web Admin can be accessed from the PC where you installed Beyond TV (http://localhost:8129). If you have a PC, running Beyond TV Link, then you’ll need to be sure BTV Link is not running then modify the Settings.xml file located at “C:\Documents and Settings\All Users\Application Data\Snapstream\Beyond TV”. Change the “TSSourceHeaderTimeout” value from 15000 to 3000. (source)
2. The StreamSnip feature (cuts sub-signals from HD recordings out of the file, which reduces the overall file size) does not work with shows recorded with the HDHomeRun.
3. If your custom lineup ended up with no name in the setup wizard, then you can give it a name if you like in the Web Admin by going to Settings > Channels. Just select the blank value from the “Channel Lineup” droplist, enter a name in the “Friendly Name” textbox, and click “Save and Exit” at the bottom of the page.
4. General HD viewing tip: If the picture stutters when viewing HD, then try switching to “overlay” (Settings > Playback Settings > Video Renderer).
5. No audio/video in the channel test screen of the setup wizard (after channel scan): Right Click C:\windows\inf\bda.inf, choose “Install”, then reboot. (Source)

Updates:

1. 3/28/2007: Updated Tip #1 (how to reduce LiveTV startup from Beyond TV Link)
2. 4/24/2007: Added “known issue” #5.