{TAIL ~ The sampled portions} of the analog video signal are provided to {HEAD ~ a multiplexer} and then passed sequentially through the multiplexer 
{ TAIL ~ The sampled portions } of the analog video signal are provided to { HEAD ~ a multiplexer } and then passed sequentially through the multiplexer
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH