The revolution will be televised.

Planners of the National Tea Party Convention, billed as a coming together for the conservative grassroots groups who sprang up in anti-stimulus protests last year, announced late Sunday that they would broadcast main parts of the convention, including the keynote by former Alaska Gov. Sarah Palin on Saturday night.

The organizers suggested that they saw the broadcast as a solution to some of the criticism leveled at the convention over the last several weeks, as sponsors and participants have pulled out and grassroots tea party activists have complained that the ticket price — $549 — is too expensive for members of a movement that holds fiscal conservatism as a core value.

Activists had also raised an eyebrow at Ms. Palin’s speaking fee, which reports have put at $100,000. Some former volunteers for Tea Party Nation, the for-profit social networking site behind the convention, have said that they resigned in protest over the ticket prices, and accused the organization of trying to profit off the movement.

And Tea Party Nation was criticized for limiting access to only those news organizations that it believes have given it “fair” coverage, a small group reported to be Fox News, the Wall Street Journal, BreitbartTV, World Net Daily and a few others, although organizers had said they were working to open up the convention to more media.

The announcement said that an internet media company, PJTV, along with Fox News, CNN and Reuters TV, would broadcast “many” of the proceedings of the convention this weekend in Nashville, as well as “special interviews of delegates and speakers.”

Mark Skoda, spokesman for the Tea Party Convention, said in a statement announcing the broadcast that the organization had long planned “this surprise” to allow more activists to participate.

The statement quoted Judson Phillips, the president of Tea Party Nation, saying, “As we are all committed to grassroots activism, we wanted to share this event with those who could not come to Nashville.”

The organization said the broadcast schedule would be posted on the National Tea Party Convention Web site.

Separately, Mr. Phillips’ wife and a co-creator of the organization, Sherry, sent out an e-mail message to Tea Party Nation members that fought back against the criticism and also hinted at some of the divisions that remain within the movement.

She said that former Tea Party Nation members were “unanimously banned from our site for reasons running the gamut from antagonism to passing on confidential information.”

“These members have been blogging, as well as discussing their association with liberal media outlets and conspiring with each other to ‘Take TPN and this convention down.’ ” she wrote.

One former member, she wrote, had said that Mr. Phillips boasted “I want to make a million dollars from this movement.” Ms. Phillips said he never said any such thing — he said he wanted “a million members.”

Ms. Phillips said that two Republican congresswomen who last week canceled their appearances at the convention, Michele Bachmann of Minnesota and Marsha Blackburn of Tennessee, were “rightfully concerned about backlash they will receive from the left-leaning Democrat controlled House Ethics Committee.”

Ms. Phillips also said the convention expects to break even, and “may even make a few thousand dollars to cover local operating costs of TPN.”

The convention, she said, is sold out with a waiting list of 500 people. As of Monday afternoon, the convention website said there were still banquet-only tickets available for Ms. Palin’s speech.