Minimum:
- LED (OLED if you can afford the cost)
- 1080p HDTV
- HDMI input (assumes your computer has an HDMI or DVI output)
- remote control
Nice to have:
- viewing distance to fit your room
Feet Minimum size Maximum size
6 feet 24-inch screen 36-inch screen
8 feet 32-inch screen 48-inch screen
10 feet 40-inch screen 60-inch screen
12 feet 48-inch screen 72-inch screen
Note that if you have longer distances, the increment is for every 2 feet further, the screen size goes up about 4” to 8”. However, I am of the opinion that once you go past 80”, you are better off with an HD projector but that is a whole new can of worms.
- wall mount (yes I know you have others but believe me, it really helps to save space)
- multiple inputs (4 HDMI is about standard, more if you can get it. But also add, 2x USB, component video, DVI?, VGA?, Optical? - count up your connected devices such as blue ray, cable, sat and gaming systems)
Extras:
- smart (Internet connection - fairly standard)
- HD antenna input (usually old coax connector with decent HD antenna)
- future proof with 4K resolution if you can
- higher refresh rates are good up to a point. 60 khz is minimum, 120 khz is better and what you should be targeting, 240 khz is over kill
Features to avoid
- curved if you are going to be watching from a limited set of locations (minimizes distortion for only one person). Also, consumer tests show that this is only effective when the screen is > 100 inches.
- built in speakers (save your money for a decent surround sound or sound bar)
Just my .02
I am in the business and LG’s or Samsung”s SUHD quantum dot displays blow everything else away. I would wait a couple of weeks for CES 2017 and see what products are announced.
Here is a link to Costco's Samsung lineup:
http://www.costco.com/samsung.html
And LG:
http://www.costco.com/CatalogSearch?keyword=LG+TV&refine=750446
Stay within 55” to 75” and you will have quality for years to come. If you aren't impressed by what manufacturers announce at CES, then pick up last years model at a discount.