[MsVidCtl & MS Tuner Library] Problem tuning analog TV through cable

I'm trying to add TV support to a program, and correctly added analog antenna support so far, however I'm having problems trying to add support to analog cable: some programs get recognised twice on contiguos channels, plus they aren't found on the same order nor channel numbers the program that came with the hardware displays. Also, the program uses just a max channel number of 108 and I'm forced to use more than 210 channels in order to find all of them.

As far as I know doing this should be the same way as adding analog antenna, but just setting the InputType property of the AnalogTVTuningSpace instance to TunerInputCable, but it isn't working as expected. I'm on a PAL-B region.