Luckily, there is a fix available in the form of a composite A/V adapter ... desolder the RF modulator and solder the A/V adapter in its place. Getting to that point was a bit tricky due to ...

You'll get 6-8 HDMI and 2-3 each for component/composite (but no VGA, S-video, or SCART). For RF stuff (e.g. Atart 2600) get a RCA to F Male adapter and connect it to the TV's coax tuner input ...