I got them so they're all ready to play and output to hdmi
- The Saturn and Master System are connected via rgb scart cables to an open source scan converter
- Genesis games are being handled by the Analogue SG which has native hdmi until I can make the repairs to my Sega CD and find the cables for that and my Genesis
- The Dreamcast has a vga box called the Akura that actually outputs to hdmi instead of vga