I paid $180 bucks at best buy for 2 [4K] hook-up plug in Lines!

One for regular DVR Cable and one for the ROKU-4

TV picture really came in much better.

I watch DVR movies thru HDMI1 Port[Cable] and HDMI 3 for ROKU Wi-Fi = UltraFlix only.

I don't subscribe to any other pay for view competitor