Go to Netflix and play the video that you want to record.
#Capure sound in x plane 11 video recording how to
To know how to do it, you can follow the steps below. It can include the audio from the video, and you can also use a microphone while you are screen recording.
To transmit video over network, some people use "pseudo-MJPEG" codec by compressing individual frames as regular JPEG images. Silverlight does not support video encoding and more likely this won't be implemented at least by Microsoft.