(CNN) Typos are a fact of television news life. But they rarely get more egregious than this.

"TRUMP CUTS AID TO 3 MEXICAN COUNTRIES" read the banner on "Fox & Friends Weekend" right after the show started at 6 a.m. on Sunday.

Three Mexican countries?! Whoever wrote the graphic obviously meant "three Central American countries." The co-hosts reported it accurately. But the graphic was an embarrassment.

Several hours later, after the error went viral on social media, co-host Ed Henry addressed it and said "we apologize for the error — it never should've happened."

The laughs at Fox's expense lasted all day. But there wasn't just laughter — there was serious criticism as well. Some of Fox's detractors said the error was emblematic of ignorance, and worse, on the network's right-wing talk shows. They pointed out that President Donald Trump treats the show as an informal intelligence briefing.

Read More