Al Jazeera English was lauded by the United States government and even by a few competitors for its broadcasts from Egypt and other Middle Eastern countries earlier this year. But it is finding out that cable and satellite distributors like Comcast, DirecTV and Dish Network wield an enormous amount of control over the channels that viewers in the United States can and cannot see. “It’s all about leverage in this business, and they don’t have any,” said Paul Maxwell, the head of a cable industry consulting firm.

Al Jazeera does not have a parent company with powerful assets, as the News Corporation did when it used the huge popularity of Fox News to gain channel space for a spinoff, Fox Business, a few years ago. Nor does it have proof that millions are clamoring to watch, as most Americans have not been exposed to the channel.

Reflecting what some distribution executives said on condition of anonymity, Mr. Maxwell suggested that the dearth of evident demand was the main reason for Al Jazeera’s being shut out. Still, he said, “I think it should be carried; there is a public interest reason for it.”

The channel was founded in 2006 as a competitor to CNN International and the BBC. It was an offshoot of Al Jazeera Arabic, the popular Arab satellite news network that was demonized by the Bush administration as a platform for anti-American propaganda, in part because it broadcast Al Qaeda videotapes. Furthering the tensions, American missiles struck Al Jazeera offices in Afghanistan in 2001 and in Iraq in 2003 during the wars in those countries. In both cases United States officials said the strikes were mistakes.

The tensions began to ease toward the end of the Bush administration. But Al Jazeera officials say they believe that American impressions of both the Arabic and the English channels were harmed. Early meetings with distributors were about correcting “myths and misperceptions” of the English channel, Mr. Anstey said. Now, he added, those myths never come up.