You will have to probably redo the shelves completely. Looking at how they are built you cannot just remove the middle to put the TV in. You may be able to put some support under the shelf that will be just above the TV....just consider this. I would paint the inside of the shelves a fun color- cobalt blue or burnt orange maybe. This will give you a great backdrop for your things and keep the TV from becoming a black box on the wall. It's a great space!

you can use wall panel to cover the cables. there must be a hole on the panel behind the tv. for switch you can make one more hole and move your switch on the panel.

You can orient your living room seating, and create a partition which does not go all the way to the ceiling: this enabling a visual barrier, space for tv unit and other display pieces and still have the openness and have large space still intact. Contact for further dialogue. And all the best!

Hello there, since you have got a blank canvas, I would suggest hiring a designer first for a coherent design and decor. As for the living room TV unit, you could do with floating shelves and a wallpapered backdrop for TV with wall mount. As for the pooja many designs have been put up for reference and it is better to partition out a separate room with glass. Regards, Aurum Ideas and Spaces Bhubaneswar