Baldwin tweets that crews from both organizations -- and others -- have been camped outside his Greenwich Village home in New York City. It is the same home where the Canadian woman, Genevieve Sabourin, appeared over the weekend, prompting him to call police.
"Outside my apt, "journalists" from the Post camped out to talk to me about stalking," he wrote late Tuesday. "They camped out all day. Wait. Isn't that.......?"
Baldwin added Wednesday morning: "Outside my apt today, alongside the other stalkers from the tabloid press, a crew that identified themselves as being with the Today Show. ... I haven't appeared on the Today Show in many years. But did they have to camp outside my apt?"
Baldwin, star of NBC's "30 Rock," tweeted repeatedly about his belief that the network's morning show was among the outlets that sent crews to his home. He finished one "Today" tweet with the hashtag, "#howthemightyhavefallen."
Sabourin, 40, was arraigned Monday in New York City on charges including aggravated harassment and stalking after appearing outside his home and allegedly sending e-mails and messages.
The New York Post has reported that Baldwin and the woman had dinner twice last year. The paper cited a law enforcement source who said Sabourin claimed a sexual relationship with Baldwin, but Baldwin said the dinners were "strictly professional" and denied any "physical relationship."
The denial didn't stop Post columnist Andrea Peyser from speculating that Baldwin's next marriage could be doomed. He is engaged to 28-year-old yoga instructor Hilaria Thomas.
"Here was a poor, misunderstood schlemiel just trying to help the career of a woman so clearly smitten with him. Baldwin had no choice. He had to wine and dine Sabourin. Platonically, of course!" she wrote.
Baldwin fired back on Twitter: "You won't find a writer more casual with the truth in all of journalism than Andrea Peyser...."
That spawned another, bizarre column from Peyser, in which she called Baldwin, "My love. My soul mate. My supersized forbidden fruit!" and accused him of being fixated on her.
Baldwin tweeted in response: "This just in: Andrea Peyser is joining the cast of the Today Show."
NBC did not immediately respond to a request for comment Wednesday.