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