'GMA' vs. 'Today' in Closely Watched Ratings Fight -- Did ABC's Couric Finally Beat Her Old NBC Show? Deadline

In the high-stakes battle for morning ratings supremacy between NBC’s “Today” and ABC’s “Good Morning America,” a crack finally appeared Wednesday in the NBC show’s armor. “GMA,” with former “Today” star Katie Couric as guest host, beat “Today” in total viewers, reports.

While Ryan Seacrest was on "Today" announcing he will be part of NBC’s upcoming summer Olympic coverage, "Good Morning America" won the ratings battle thanks to day three of Couric guest-hosting for Robin Roberts. "GMA" had 5.236 million total viewers, to "Today's" 5.149 million, the story reports.

However, in the 25-54 demographic, "Today" beat "GMA" with 2.25 million viewers to 1.93 million.

“GMA” is trying to unseat “Today” as No. 1 in the morning daypart for the week after a historic run for the NBC show. As reported previously, “Today” has come out on top for more than 16 years -- the longest winning streak in TV history.