	gulf and western gw ups interest in network usa network today said it has uired time inc s tl one third interest in the network the network formerly a joint venture between time gulf and western inc and mca inc mca said that gulf and western and mca who each previously held a one third interest now will jointly own usa network on a basis terms were not disclosed usa network said usa network is an advertiser supported entertainment basic cable network reaching mln homes on cable systems reuter 
