HI -- If you could find a squared console or buffet cabinet that will fit against the side of your big cabinet that is close to the style and color of the big cabinet , then place the TV on top or hang the TV on the wall with a swing bracket . Then add a, just as long, floating shelf over top of the TV .at a level no higher than the top of the big cabinet. Ikea might have something that would work for you that is black or something you could paint to match your big cabinet.

I would either do just the top and leave the structure showing if it is a bit industrial for the space or completely cover in wood and I would not use the same wood for top and bottom by the time you veneer the plywood you could get the same wood.

Since you have a focus light in that corner already, why don't you go for a big brass statue (goddess) or small brass statues on shelves or even indoor plants on shelves or brass bells on both sides with just statue in the center. Statue like the one below will give an aesthetic look. Wish you good luck.

I moved to India in 2008 and had to relearn how to store food safely. These airtight plastic containers keep insects and humidity (mould/fungus) out of my dhals and spices. India cooking requires larger spice containers than shown in the above pictures. You can also get this same type of container in smaller sizes. Nice to have all of them in the same colour!! Makes the cupboard look tidy.