The broadcasters, which include the BBC in Britain, the CBC in Canada, the Seven Network in Australia and SABC in South Africa, unanimously pressed for further access, according to minutes of the meeting obtained by The New York Times. According to two people at the meeting, when the Beijing vice mayor, Cao Fuchao, remarked that his country’s authorities would not reverse their decision to restrict access, Alex Gilady, an I.O.C. commissioner and NBC vice president, pointed his finger and said: “We still have one month to go. We will pursue this to the end.”

But time is not on the broadcasters’ side. Nineteen days from now, when the torch is lighted in Beijing, journalists and viewers could be facing the most restrictive environment for an Olympics in modern times.

At the meeting, on July 9, after months of uncertainty, Chinese officials said that all applications for live broadcasting would be approved throughout Beijing and the other cities where Olympic competitions were planned. Furthermore, the committee said that all broadcasters could tape reports from Tiananmen Square.

But the broadcasters say they will not believe it until they see it. One I.O.C. commissioner, speaking on condition of anonymity to avoid further complicating the situation, said matter-of-factly that Chinese officials had “put a tourniquet” on the Olympics.

“Had the I.O.C., and those vested with the decision to award the host city contract, known seven years ago that there would be severe restrictions on people being able to enter China simply to watch the Olympics, or that live broadcasting from Tiananmen Square would essentially be banned, or that reporters would be corralled at the whim of local security, then I seriously doubt whether Beijing would have been awarded the Olympics,” the commissioner said.

Image Chinas censorship of the news media will be tested by the Olympics, and broadcasters are uncertain of what to expect. Credit... Claro Cortes IV/Reuters

The contentious negotiations are particularly perilous for NBC, part of NBC Universal, which is trying to produce 3,600 hours of coverage. The company paid a record amount for the broadcast rights, and it expects to generate $1 billion in advertising revenue. The coverage will be produced by NBC Sports under the direction of Dick Ebersol, chairman of NBC Universal Sports and Olympics.