Hi Yaobing/jriverfan,
Yesterday I finally finished building a new HTPC and then I installed JRiver v19. I disabled firewall (just in case) and although JRiver recognized Silicondust HDHomeRun Tuners (Tools->Drivers & Devices->Television->TV Options) I got the dreaded "no television tuner available...".
I couldn't find anything on the WiKi but then (Thanks Google search!) I found and followed
http://yabb.jriver.com/interact/index.php?topic=83318.0 and I was able to wacth TV without problem :-)
The problems is it seems Time Warner San Diego (Digital) has most of it programming (i 'm guessing) copy once or copy protected since I can only watch channel 1~24, everything above 24 returns black. And worse, those are low-res 4:3 version of 16:9/5.1 HDTV channel 701~7XX.
I also notice that JRiver can only tune the same channels that HDHomeRun QuickTV can tune (QuickTV can only tune free-copy channels).
Anyway, it seems I'm back to non-configurable (I do want to install/use my own video/audio renderers) Microsoft MCE until JRiver can solve this (or cut the cord which everyday sounds more and more appealing).
Sad, from my little meddling with JRiver I really like it (well, not Netflix application, but all else :-). I know supporting encrypted programming means spending a lot of money in developing and licensing and I really hope you can make it happen some day. I'll keep track on your releases and developing, I'm sure one way or another I'll have JRiver in my HTPC :-)
Until then the best luck for JRiver team,
Javier