I watch TV through my computer and for some reason it has stopped working and I can't work it out. I think there is something wrong with windows media center. I am using a USB DVB-T TV Tuner connected to an external antenna. I have connected it through another computer and it works, so all individuals parts of the equation are fine. It just doesn't work through windows media center on my computer. I have tried turning windows media on and off through windows features but no change. Why is my TV tuner not detected? As I have said the TV tuner works fine in another computer.