In {TAIL ~ another aspect}, {HEAD ~ the viewer} may watch programs currently being shown on the television, while he or she browses through the program guide 
In { TAIL ~ another aspect } , { HEAD ~ the viewer } may watch programs currently being shown on the television , while he or she browses through the program guide
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH