Two things .

The 4 seater looks grey , which is different to blue .

And why did you buy it ?

Moving the TV won't make much of a difference , in fact putting it between 2 windows may cause sun in your eyes . And sort of minor , but where are the TV connections -- you know they work where it is , you may have holes , you may have to spend $200 if you move it .

Theres basically nothing wrong with anything , just the 2 styles of seating don't match .

Assuming you paid good $$$ for the grey 4 seater , you won't want to sell it , so does the manufacturer make 2 seaters , chairs -- you know , things that match the couch ? Can someone else supply something similar ? At a stretch , you have blue cushions -- can you get a 2 seater and/or chairs in the blue , and do grey cushions on them ? That way , they don't even have to exactly match in style -- they can't be Victorian or neo-modern , but similar arms and backs should suffice .

I love your new sofa and the single cane arm chair, it's the two seater that doesn't fit and could be removed. Like you I would swap the TV and sofa if it's not going to break the bank. You will have a lovely room with lovely outlooks by doing this

So is the dilemna that you need more seats that face the TV? Because moving the TV won't solve that problem. Unfortunately, a modular is actually the ideal lounge configuration for this room to maximise seating space.

You can put a chaise lounge in there where the cane sofa is and have the arm of it facing the TV. You can place two occassional chairs in a co-ordinating style where the cane lounge is.

You can place a wide ottoman where the cane lounge is that could be placed directly next to the new lounge create a modular when needed.