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