The Murdoch-owned Fox News Channel, whose determinedly patriotic stance during the Iraq conflict brought it critical notoriety but commercial success, is under investigation by television regulators in Britain for alleged bias.
The independent television commission is investigating nine complaints by viewers of the channel, broadcast on Sky Digital satellite, also controlled by Rupert Murdoch.
If the network is found to have breached the ITC's "due impartiality" rules, it could be forced out.
In 1999 the ITC revoked the licence of Med TV, a channel aimed at the Kurdish diaspora, for failing to conform to the impartiality rules.
Julian Petley, chairman of the Campaign for Press and Broadcasting Freedom, called on the ITC to act against Fox News: "I'm not in favour of censorship, but Murdoch would like to do with British television news what he has done with newspapers, which is to force people to compete on his own terms.
"So if we allow into Britain the kind of journalism represented by Fox, that would bring about a form of censorship ."
© Guardian Newspapers Limited 2003