Hi,Has anyone tried connecting their STB to an external TV Tuner card to see if the signals will be available on the monitor.I am planning to purchase an external TV Tuner card, but I am not sure if the STB will work with it. The TV Tuner card has the AV inputs. Please let me know if anyone has ever experimented with this. I think it should work, but I want to be sure before I take the plunge.