Well bummer, was hoping this thread was going to further a better understanding of what others had in their custom comp. "rig" and what it was built for as a comparison. Guess not, guess I should have seen the "rig" part coming. At least it didn't attract a drug crowd.

Yes I am cheating and having it built, lol.

BLUETOOTH: USB Micro Bluetooth Adapter (V4.0 EDR + aptX)
CAS: Phanteks Enthoo Primo w/ Dual Power Supply, USB 3.0, Blue LED,
Side-Panel Window
CASUPGRADE: RGB Multi-Color 16 color LED 1x interior light strip w/
Remote Controller
CD: LG 16X Internal Blu-ray Burner, BD-RE, 3D Playback DVD+RW Combo
Drive
COOLANT: Koolance High-Performance Liquid Coolant (Colorless)
CPU: Intel(R) Core™ Processor i7-7700K 4.20GHZ 8MB Intel Smart Cache
LGA1151 (Kaby Lake)
CS_FAN: Default case fans
FAN: RayStorm 420 EX360 LCS Kit W/ 360MM EX360 Dual
Radiator, X2O 420 Bayres/Pump & Reservoir, RayStorm Copper Cold Plate
CPU water Block (6 x Standard 120MM Fans)
HD_M2SSD: 16GB Intel(R) Optane™ Memory Accelerator M.2 PCIe NVMe + 2TB
SATA III Hard Drive Combo [ARRAY MODE] (OS Drive)
HDD: 1TB Samsung 850 EVO Series SATA-III 6.0Gb/s SSD - 540MB/s Read &
520MB/s Write
IUSB: Internal USB 3.0 4-Port Hub
MEMORY: 32GB (16GBx2) DDR4/3200MHz Dual Channel Memory (GSKILL
Ripjaws V
MOTHERBOARD: GIGABYTE AORUS GA-Z270X-Gaming 9 ATX w/ RGB, USB 3.1, 4
PCIe x16, 2 PCIe x1, 6 SATA3, 2 M.2 SATA/PCIe, 2 U.2 Thunderbolt
[Intel Optane Ready]
NETWORK: Onboard Gigabit LAN Network
NOISEREDUCE1: Anti-Vibration Fan Mounts
OS: Windows 10 Pro (64-bit Edition)
OVERCLOCK: Extreme OC (Extreme Overclock 15% or more)
POWERSUPPLY: 850 Watts - EVGA 850W GQ 80 Plus Gold Power Supply
SOUND: HIGH DEFINITION ON-BOARD 7.1 AUDIO
VIDEO: EVGA GeForce(R) GTX 1080 Ti SC2 HYBRID GAMING iCX 11GB GDDR5X
(Pascal)[VR Ready] (Single Card)

Hooking up a TV for a monitor isn't hard at all providing you have the right connections. Hopefully your TV has an HDMI input (it will say the type of connection it is by the input on your TV) As for the computer side, all depends on what your computer has and how old it is, in any case Fry's (http://www.frys.com/)or Microcenter (http://www.microcenter.com/site/stores/houston.aspx) will have any adapter you would need.
Here is a link for the Roku
https://www.youtube.com/results?search_query=how+to+hook+up+a+roku.

Used to play Everquest2
Fallout4 with all the DLC's
Skyrim Elder Scrolls Massive amount of mods, then they gave the HD special version, haven't modded that one ... yet
Just got Middle-Earth Shadows of Mordor seems cool so far
Ark Survival Evolved
GTA V
Built my rig I have now, just ordered a custom one, thinking about getting into VR next