Solved! UHF/VHF converted for ROKU

Aug 15, 2018
Hello, I am trying to hook up adapters to an old TV that only has the old UHF VHF screw. I tried a UHF/VHF to coax cable converter to an RF modulator, then the red,white, yellow cord from the RF modulator to an HDMI converter, then plugged my ROKU into that. The ROKU is on and has a solid white light, but there’s no picture on the tv screen.

Can someone help me make this work?
Forever grateful,