I come here a few times a day, to browse hot topic posts but rarley do I post :D So I decided it is about time as I know alot of you guys know your stuff! 

My PC is hidden behind my TV and I currently game on a 50inch TV as I am a console gamer at heart, but I also love certain PC games that I don't really play due to the two biggest limitations. 

1) No controller support!! - I got a steam controller for xmas so yay I can play some slower paced games fine now. 

2) Text to small to read.

Now the biggest issue is the text for me, and playing on a 50inch tv I thought reading text would be easier, well it isnt lol. I often find myself turning the game resolution down so I can see it better, or trying to find files to edit to increase the text size abit..

I figured the only reason the text reading is so bad, compared to say a PC monitor is because its a TV and not really designed for showing finer points. But I know nothing about the subject so I could be wrong. 

Anyway, I thought maybe a 4k tv displaying a really high resolution would be better, due to the more pixels you can see, so maybe text is more clear, less blury and easier to read.

Is this the case? or should I just stick to what I use now and lower resolution?? 

This is my RIG, I am not sure if it is 4k ready tbh, maybe not max. 

i7-4790k 4ghz

16gig 1886mhz ram

SLI 970's 

Cheers :D

What's the distance between the tv and yourself when you play?
Also, you can play most games with a controller.I even play MMOs with the DS4.

The text would just get blurrier/smaller. Put a HD console on a SD TV. The text becomes unreadable. Because it's too small. The problem is the game making the text too small. It just be worse. The text is easier to read on PC. Because you sit a few feet from it.

only 3.5 GB fast video memory will be problematic in most modern PC games run in 4K. The 2 graphics cards can't share the 7 GB fast memory.

One 6GB-GTX980 Ti will probably deliver better results than two GTX970s, even if the games have good SLI-scaling.

I sit very close, like 1.5 meters away currently ( to close I know ) but text is still way to small to read, I tried civilization beyond earth and it was impossible to read and play.

Maybe my best bet would be to get a steam link / nvidia shield thingy and stream my PC to my computer desk upstairs?

I was hoping my 970's would handle it, but I am willing to upgrade

I would recommend working on a ridiculous amount of frames per second (100+) before going to 2160p. But who is to say you can't do that and be successful at 1440p? A high-end monitor will point out any shortcomings your SLI has but it will cost you.

How many 970's are you running? If it's two, I wouldn't recommend it, your usable video memory will be too low for proper 4k. I find 1440p would be better for you, I went that route and do not regret it one bit, it's a lot better than 1080p but not nearly as taxing as 4k.
There really isn't any proper, practical setup that handles 4k very well yet; the vram pool issue is the biggest culprit (you can't technically use more vram than is present in one GPU even if you have two or more, so three cards with 3GB will yield only 3GB of usable vram and not 9GB).

Increasing resolution will only make the text smaller, I sit 7 feet from my 65 inch. 4K tv, but I've never had a problem with text size.Maybe you should try this link https://goo.gl/sN4UYb since CivBE's fonts are known for being unreadable for some people.Hope that helps :)

I don't think 4K will help, it's more of a viewing angle problem.

For 1080p 24" monitor, person sitting 2 feet away (0.61m) has viewing angle of 47 degrees.

In order for you to have same angle on your 50" 1080p TV, you would need to sit 4.15 feet away (or 1.26m).

Some devs just don't take into account TVs (or people with not so great vision)...I also hate when I have to drop resolution for larger text.

View Distance Calculator:

http://myhometheater.homestead.com/viewingdistancecalculator.html

You need a bigger screen or sit closer.
It's twice as easy to read small fonts on a 1080p 15" laptop 1 foot away, than on a 1080p 92" 1080p projection screen 12 feet away. It scales linearly, if you know the distance at which you are comfortable, then it's simply multiplying the screen size by the same factor as where you want to sit.

If I want the same fov on my projector as on my laptop, About 15" from 15.4" laptop is the same as 7.5 feet from a 92" screen. Counter intuitive, yet I have a bigger fov playing on a laptop than on a wall covering projector!