I have an Express 4K+ remote. When I turn on the TV, the ROKU icon shows for a bit, then I get "No Signal". I then put another Express 4K+ base and remote that I have on the same TV. I used the existing HDMI cable and power cord from the non-functioning base. That works perfectly. Therefore, my problem is with my original base or remote control. When I put my problematic base and remote control on another TV, I get the "No Signal" notice. How do I fix this?