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