FM Radio and TV Tuning in Video Capture SDK .Net

foreach (string tunerDevice in VideoCapture1.TVTuner_Devices)
{
  cbTVTuner.Items.Add(tunerDevice);
}

foreach (string tunerTVFormat in VideoCapture1.TVTuner_TVFormats())
{
  cbTVSystem.Items.Add(tunerTVFormat);
}

foreach (string tunerCountry in VideoCapture1.TVTuner_Countries)
{
  cbTVCountry.Items.Add(tunerCountry);
}

VideoCapture1.TVTuner_Name = cbTVTuner.Text;

VideoCapture1.TVTuner_Read();

foreach (string tunerMode in VideoCapture1.TVTuner_Modes())
{
  cbTVMode.Items.Add(tunerMode);
}

edVideoFreq.Text = Convert.ToString(VideoCapture1.TVTuner_VideoFrequency);
edAudioFreq.Text = Convert.ToString(VideoCapture1.TVTuner_AudioFrequency);

cbTVInput.SelectedIndex = cbTVInput.Items.IndexOf(VideoCapture1.TVTuner_InputType);

cbTVMode.SelectedIndex = cbTVMode.Items.IndexOf(VideoCapture1.TVTuner_Mode);

cbTVSystem.SelectedIndex = cbTVSystem.Items.IndexOf(VideoCapture1.TVTuner_TVFormat);

cbTVCountry.SelectedIndex = cbTVCountry.Items.IndexOf(VideoCapture1.TVTuner_Country);

private void VideoCapture1_OnTVTunerTuneChannels(object sender, TVTunerTuneChannelsEventArgs e)
{
  pbChannels.Value = e.Progress;

  if (e.SignalPresent)
  {
    cbTVChannel.Items.Add(e.Channel.ToString());
  }

  if (e.Channel == -1)
  {
    pbChannels.Value = 0;
    MessageBox.Show("AutoTune complete");
  }

  Application.DoEvents();
}

const int KHz = 1000;
const int MHz = 1000000; 

VideoCapture1.TVTuner_Read(); 
cbTVChannel.Items.Clear();

// For FM Tuning, you can specify the initial frequencies and the scanning pitch 
if ((cbTVMode.SelectedIndex != -1) && (cbTVMode.Text == "FM Radio")) 
{
  VideoCapture1.TVTuner_FM_Tuning_StartFrequency = 100 * MHz; 
  VideoCapture1.TVTuner_FM_Tuning_StopFrequency = 110 * MHz; 
  VideoCapture1.TVTuner_FM_Tuning_Step = 100 * KHz;
};

VideoCapture1.TVTuner_TuneChannels_Start();

VideoCapture1.TVTuner_Channel = Convert.ToInt32(edChannel.Text); 
VideoCapture1.TVTuner_Apply();

VideoCapture1.TVTuner_Channel = -1; // must be -1 to use frequency 
VideoCapture1.TVTuner_Frequency = Convert.ToInt32(edChannel.Text); 
VideoCapture1.TVTuner_Apply();