An input device allows the viewer to browse through the schedule information area and obtain {HEAD ~ more information} about {TAIL ~ programs} of particular interest 
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An input device allows the viewer to browse through the schedule information area and obtain { HEAD ~ more information } about { TAIL ~ programs } of particular interest
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH