Lows in the Mid-Eighties (2) - S3-E9
Continuity mistake: When Will tells Grace he's gay, the champagne bottle on the table keeps rotating.
Lows in the Mid-Eighties (2) - S3-E9
Factual error: When Will and Grace bump into each other in the supermarket in 1986, more recent items and brand names can been seen in the fridges and on the shelves during the scene.
Lows in the Mid-Eighties (2) - S3-E9
Continuity mistake: When Will tells Grace that he is gay, there is a tray of finger foods on the table next to him, as he kneels on the floor. In the second shot, the plate is covered in cling film, but in shots before and after, there was no cling film.
Lows in the Mid-Eighties (2) - S3-E9
Visible crew/equipment: When Will and Grace walk past the old supermarket through the rain, near the end, the camera trolly is reflected in the shop windows, behind them, as they walk past. (01:20:50)