I got a great deal on the 50-inch LG Smart TV. I highly recommend it. 
That's awesome! I hope you enjoy it and get your money's worth also! The best LG TV's are supposed to be the OLED TV's.
It's a LED 4K UHD Smart webOS TV. The picture quality is amazing. 
Yes, the quality of the picture is amazing on those....almost like you're there and great to watch games on....The C8 4K is supposed to be good too.
I'll have to check that one out. I'm a big sports fan so the picture quality is important. 2160 pixels! You can't beat that. 
They make 8K TV's now, have been for a while...One LG model has the equivalent of 33,177,600 pixels...Supposed to be one of the best pictures you'll likely ever see 
Wow! I hadn't heard about that. I got this one at Best Buy for $350 for my bedroom. I may have to look into that one for my living room. 
Yes, what you have is fine for a bedroom...Yes, definitely look into the 8K TV's as you're likely to find a good deal to watch those games on from the field :)
LG is a great brand. I've had good luck with them. I'll have to into their other models.
That's not to undermine the picture on a lot of 4k tvs though, they are still very good and in the LG brand you like, like the 55 inch OLED Tv....over $1000
I'll definitely have to check them out. I like LG's warranty policy too.