Naïve of you to think that this space needs a TV, when any house like this is probably large enough and expensive enough to have a proper home theater room with a proper projector and surround sound system.
You’re probably right for a home with this setup today. Back when these were really popular, probably not.
Home theaters are a fairly recent thing and were not the norm, even for people with these types of setups, outside of maybe the uber rich who could afford a projector and the cost of prints. For a sense of costs, a Super 8 reel of a theatrical film would run anywhere from $600-$1000 (accounting for inflation).
If we are placing this setup in a time where a home theater would be prohibitively expensive, then it is also the time when a TV is a boxy space hoarding big blurb of NTSC/PAL glass. Making the whole TV discussion moot. There was probably a TV room with a more traditional sofa and a large wall embedded CRT TV. Still, in a house with a conversation pit there was no consideration for, nor expectation for a TV to be present in the living room. That is also a post modernist expectation, where screens are ubiquitous, demanded and expected to be present at all times.