Martha Stewart took to Twitter to take a swipe at the Hallmark Channel, her former business partner, reports the Los Angeles Times’ Show Tracker.

Stewart was writing on Twitter to make an announcement about her new PBS series, "Martha Stewart’s Cooking School." As previously announced, the show will air on PBS stations across the U.S. this fall.

"The response to our announcement for a PBS cooking school series is wonderful," Stewart wrote. "Easy access to PBS as opposed to Hallmark will be wonderful."

Hallmark is phasing out Stewart’s programming after a failed 2-year partnership with Martha Stewart Living Omnimedia, the piece adds.