Joey Stivic was born after his parents had moved out of 704 Hauser. Though no one knows where he lived after he was eight years old, when Archie Bunker's Place and Gloria both went off the air, at least until then, he had never lived in the house.
When Ernie is spreading out the tablecloth while complaining about their pastor, he has it covering most of the table. The camera cuts to Goodie for a reaction shot and when the camera is back on Bernie, the tablecloth is only over a small portion of the table again.