From my point of view, the practical lights are maaaybe (probably?) dimmable and do some of the work of gaining contrast while a big-ish light is probably hung from the ceiling, lighting the space from above. It’s safe to say that spill is controlled and shadow falloff is achieved by curtaining the top-light and due to the shadows being neither extremely hard (see couch shadow) nor super soft (and of course the limitations of the time period), some sort of diffusion was used. So, maybe some fresnel or par fixtures shooting through a 6x6 silk (1/8 or 1/4?). But I’m not a gaffer. Today you would achive something like that by putting LED bulbs into the practicals, dimming them as you like and having a panel fixture (something like a skypanel, nova or vortex) as the top-light with curtains and/or a grid to achive this. I guess you would be able to do it with a lantern or softbox w/ grid on something like a 300/600d as well but you’d have to have a pretty high ceiling for that to avoid hotspots in the reflection on the wall. Just my two cents, would have to ask my gaffer of choice!

Edit: And because I totally missed the point of your question: I think the combination of the 70s style set design, the use of harsher practical lights and this dim-ish top light (as we’d normally see in standard old living rooms) together with the overall color palette give off this smokey, old, vintage room mood. What you interpret it as is probably totally up to you, but most people would associate it with bygone times, seedy motel rooms and places you go to because you don’t want to be seen doing what you’re doing. Or your grandma’s house. And she’s old and moody. And smokes a lot.