The woman is Alissa Groeninger, and she went on the newscast believing she was there to chat about The Voice.
Rivera then announces to the audience that he and Groeninger have been dating for three years, drops to his knee, and whips out the ring.
Groeninger looks pretty stunned, and pretty emotional.
Block Communications owns WAND, the NBC affiliate, in Champaign-Decatur-Springfield.
Said Groeninger on Twitter: “I thought making it out of bed for an early morning run was going to be the highlight of my day…”