public override bool NeedToRebuildTheGraph(ChannelTV newChannel)
{
return !(newChannel is ChannelAnalogic) ||
base.NeedToRebuildTheGraph(newChannel) ||
(newChannel as ChannelAnalogic).VideoCaptureDeviceName != VideoCaptureDeviceName ||
(newChannel as ChannelAnalogic).AudioCaptureDeviceName != AudioCaptureDeviceName ||
!(newChannel as ChannelAnalogic).FormatOfCapture.Equals(FormatOfCapture);
}