The Simpsons - Season 25 Episode 11 -

Mr. Burns gives high-tech eyeglasses to all of his employees in order to spy on them. Homer loves the enhanced reality of his new gadget - that is, until Marge tries them on and he finds out she's seeing a marriage counselor. Meanwhile, Bart takes a stand against buying Nelson a Valentine's Day card, despite buying one for every other kid in class, and Nelson delivers him an ultimatum: find him the best Valentine's Day gift ever or be fed to the classroom electric pencil sharpener.