I bought a HDMI to AV converter so I can use my Roku on my Audiovox KLV3913 TV, since there is no HDMI connection. I can't seem to get it to work!! Help!!!

Which specific Roku player are you connecting to the TV? The most recent models output HD (720 or 1080 lines) or 4K content. Some of the earlier models of the streaming hardware did work with the converters. However, some converters were faulty out of the box and didn't work with any HDMI output device. Which specific Roku player are you connecting to the TV? The most recent models output HD (720 or 1080 lines) or 4K content. Some of the earlier models of the streaming hardware did work with the converters. However, some converters were faulty out of the box and didn't work with any HDMI output device.

This page,https://www.manualslib.com/manual/371417... , indicates a more important issue that I missed. The composite port (yellow) on the KLV3913 is a AV out port for playing a DVD on another screen. It is not a video input.
The Roku 3810X is also called the Roku streaming stick + player. It's minimum resolution is 1080p. Most of the converters start having issues dropping the signal to the 480 of composite inputs. Cindy Wells This page, https://www.manualslib.com/manual/371417/Audiovox-Klv3913-12-720p-Lcd-Tv-Dvd-Combo.html?page=13#manual , indicates a more important issue that I missed. The composite port (yellow) on the KLV3913 is a AV out port for playing a DVD on another screen. It is not a video input. The Roku 3810X is also called the Roku streaming stick + player. It's minimum resolution is 1080p. Most of the converters start having issues dropping the signal to the 480 of composite inputs. Cindy Wells