WHBF-TV
WHBF-TV , virtual and VHF digital channel 4 , is a CBS-affiliated television station licensed to Rock Island , Illinois , United States , serving the Quad Cities area of northwestern Illinois and southeastern Iowa . 
<triplet> WHBF-TV <subj> television station <obj> instance of <subj> Rock Island, Illinois <obj> headquarters location <triplet> CBS <subj> television station <obj> instance of