Measure the actual width and height of the TV (neither figure will be 65 inches) then decide whether you want it in a wall unit, as above, or on an entertainment unit, and how much space you want around the TV. I've got a 50 inch TV on a 1950 mm wide entertainment unit, which to my eye, looks about right, and gives me room for a few decorative bits on either side of the TV. If I had a 65 inch TV, I'd go for something bigger. Of course, it also depends on how big the room is, and what proportions would look good in it.

Hi, Jessica, can you post some photos of both in the comments?

My TV has an assortment of peripherals - sound bar, DVD player, Foxtel box, and a whole lot of cords. My entertainment unit minimizes all those dratted extras, and provides storage for DVDs, CDs, and of course the cords. If that table can do the same, go with it.

This is very similar to our floor plan (yet to start building) ... same as you we have our backyard to the north, kitchen to the east, dining table in the middle, lounge to the west. And we had the exact same dilemma where to put the couches. We decided on position 1 but in an L shape with a couch along the west wall and north wall. And we will have two arm chairs or ottomans in your couch position 2. We decided on this because it feels more open and didn’t want the TV to be a main focal point. Don’t necessarily want to see the back of the couch either.