Description:What do you get when you mix news anchors and girlfriends on the air? An adorable proposal, that's what. "Good Day LA" highlighted the video where WAND-TV news anchor Mark Rivera proposed to his journalist girlfriend, Alissa Groeninger, on-air. Once he dropped to one knee and proposed, she said, "Yes!" and the two hugged. NY Daily News reports Rivera's fellow anchors at toasted him and his bride-to-be later on in the show, with what Rivera said was Welch's grape juice.(1:06)