The characters and graphics transmitted through a data channel are displayed clearly to {HEAD ~ the viewer} by {TAIL ~ an ingenious technique} devised for displaying characters and graphics of a supplementary program 
The characters and graphics transmitted through a data channel are displayed clearly to { HEAD ~ the viewer } by { TAIL ~ an ingenious technique } devised for displaying characters and graphics of a supplementary program
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH