A whole range of television shows during the 70s addressed working class life.
The Jeffersons is a bit different because George Jefferson is an upwardly mobile figure– he owns several dry cleaning stores though his roots are much more modest.
Good Times uses “hustle” in its older sense and explicitly addresses economic hardship in its theme song.
One reason All in the Family works as as a sit-com is because the character of Archie Bunker is an absurd reactionary who rejects the Social Democratic settlement– the “Welfare State” he references in the theme song.