The Christian conservative group American Family Association (AFA) is calling on members to boycott NBC's Today Show over its decision to open its annual Modern Wedding Contest to gay and lesbian couples.

The Gay & Lesbian Alliance Against Defamation (GLAAD) began protesting the exclusion of gay couples from the contest about two weeks ago. NBC executives reversed course Thursday after meeting with representatives from GLAAD. In addition to including gay couples, producers also agreed to extend the deadline for the contest until Monday, July 12 to allow for gay couples to submit their applications.

On Friday, the AFA began urging members to protest the network's decision.

“Let NBC know their recognition of same-sex marriage is an attack on traditional moral and Judeo-Christian values, and to recognize it as such is cause for you to stop watching the 'Today' program altogether,” the group said on its website.

The campaign against NBC asks members to contact Today Show Producer Jim Bell.

A sample protest letter provided by the group chides the network's recognition of gay marriage, calling it an “affront to the very sanctity of marriage.”

“Please count me as one who will no longer consider watching NBC's 'Today' show and I reject your attempt to engineer the social acceptance of political correctness,” the letter says.

The popular contest asks viewers to plan the wedding – from soup to nuts – of one lucky couple, who then marry live on the air sometime in the fall on NBC's dime.

The decision also spurred a heated debate at the show's Facebook page.

The AFA has a long history of launching boycotts against gay-friendly corporations, including PepsiCo, McDonald's and Ford Motor Company.

Seventy-two-year-old AFA founder Donald Wildmon stepped down as chairman of the group in March. His son Tim Wildmon took over the reins of the group and has kept up his father's heated anti-gay rhetoric.