Edited sentence: A few months later, all of the radio network began broadcasting 24 hours a day and more national news was added.Counting its television and radio networks, along with all satellite broadcasts to schools, ETV is the largest state-run public broadcasting service in the United States.Despite this, some executives within the network did not make this known to the public (or to most SCETV staff) until the station moved into its brand-new master control center in 1998.From the late 60's through the 1990's, some rather popular movies and documentaries shown on other PBS stations were not shown on SCETV.Given the fact that much of SCETV's budget comes from governmental sources, various allegations of censorship and mismanagement of monies have been published.In the mid 1990's, a state news show that broadcasted on the entire SC Educational Radio Network was canceled citing budgetary issues.The network's master control center, located in Columbia, was found in a 1991 study to have asbestos used as soundproofing material and fire retardant in much of the building.While many within the network claim it had a lack of time to show these programs, others claim government officials may have wanted to avoid broadcasting controversial issues like homosexuality and civil rights.While the network said that the news show was still more costly than adding six more hours on the air and more national news shows, others think the show was canceled because of its tendency to broadcast controversial issues occuring within state government