{TAIL ~ The video information} is extracted from the IF signal using a video discriminator, while the audio and data information is extracted from {HEAD ~ the IF signal} using an audio detector through the video discriminator FM subcarrier 
{ TAIL ~ The video information } is extracted from the IF signal using a video discriminator , while the audio and data information is extracted from { HEAD ~ the IF signal } using an audio detector through the video discriminator FM subcarrier
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH