Did you know Arthur was still on the air? I didn't. But I guess that's irrelevant to the article.
Anyways, Arthur just introduced it's first gay character - the beloved, everyone likes, the well dressed, well read, Mr. Ratburn! The episode basically goes like this: the gang sees Mr. Ratburn out to eat with an uptight woman, and the gang knows he's engaged, and they do everything to break up who they think Mr. Ratburn is engaged to. They show up to the wedding ready to "break it up" until they realize that he's marrying a man. But they see how happy is, so they decide to celebrate with him.