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