Or "Reader, I married him." (Jane Eyre by Charlotte Bronte. Very definitely not comedic!) Though it's perhaps easiest for it to happen in first person, as there's an implied conceit that the narrator is telling someone the tale, so being addressed by him/her isn't such a difference, unlike an otherwise third person narrator suddenly breaking in like that, unless the narrator is clearly there from the start, like a storyteller around the campfire.
With regard to drama, I don't think they had the idea of the fourth wall as we understand it until the C18th. That is, no one was thinking "Let's break the fourth wall here!" -- they just wrote and acted the play as they thought fit. Not only are there asides in the plays of Shakespeare and his fellows -- and, I'm willing to bet, comedic mugging for the groundlings -- but there are direct addresses to the audience with eg the Chorus in Henry V.
Going back to the Challenges, perhaps not quite the breaking of the fourth wall, since there was no wall there in the first place, but I've directly addressed the reader in two 75 worders if that's any help. I can't bring to mind any Challenge entries that were written "normally" as it were, with the narrator then changing narration and commenting on the action, but I'd certainly be interested in reading one. Thinking about it, I'd quite like to try my hand at writing one!