I have the TwinHan DTV terrestial PCI card. Its original driver came with the facility to select my local transmitter (Winter Hill), but the latest version is just UK.
Both pick up all the digital TV and radio output and also often add a second version, which I delete.
Some of the TV channels, such as UK BrightIdeas and FTN, whilst given separate channels on a TV set top box equivalent, actually transmit using the same transmitting specification.
Therefore, on the TwinHan, when BrightIdeas shuts down it shows FTN and vice-versa. It's the same with some of the BBC TV channels.