TV is never that clear than monitor thats why monitors are sold separately, it will strain your eyes out! Use LCD tech monitors atleast if you dont have the budget. I use a two monitor set up.
You can either add additional GPU if your motherboard support or either upgrade it if only 1 GPU is supported or you can go for external USB graphics card and I think this will be best option( search Plugable 3900 in Amazon or ibhejo)
Cost of this usb 3.0 is around 50$ and it can add 2 monitor ,so you can have 2 monitor on your current GPU and 2 on this external USB card. I am personally useing this usb and it is very good product.....hope this help's
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