Sentence:  ... the first big move toward a contract for television performers was made Friday (20) when the <WSD>webs</WSD> agreed to pay them according to the length of the show. ... Altho the major TV <WSD>webs</WSD> — NBC and CBS — may fall in line soon, an agreement may possibly be held up by the opposition of DuMont ... 
Meaning of the word marked with <WSD> tags:  A major broadcasting network.