Hello, did you install DirecTV Everywhere?
UPDATE: The uninstaller ("uninstall.command") didn't work for me. However, after doing a little more seaching I found a couple mentions of this same issue on a handful of other boards. The threads were all in Spanish, but thanks to Google Translate I was able to figure out what they were talking about -- and then track down all of the associated files that need to be removed by hand.
As soon as I moved the following 5 files to the trash, the Console errors stopped:
user > Library > Internet Plugins > PlayerPlugin.bundle
user > Library > LaunchAgents > com.nds.pcshow.plist
user > Library > LaunchAgents > com.nds.pcshow.uninstall.plist
user > Library > NDSPCShowServer > NDSPCShowServer.bundle
user > Library > NDSPCShowServer > uninstall.command
https://discussions.apple.com/thread/3822368?start=0&tstart=0