I have to say, I have definitely not had much luck with TV tuners so far. The first tuner I bought was internal, and thus, didn’t work once I woke my computer from sleep. For some reason it also started making my computer fail to boot.
My newer tuner is a USB tuner, yet it still appears to have the same problem, in that it doesn’t work after sleeping.
The advantage, however, is that I can just unplug it from one USB port, and straight into another. I ♥ hotplugging.