Electron Shepard is now selling a GCVideo-based HDMI kit for Nintendo Wii Consoles. The price is a (relatively) low $80 plus shipping and it's compatible with all versions of the Wii, except the Mini; Previous versions of Wii HDMI mods were only compatible with a select few. You can pre-order now
Nintendo Wii Services
HDMI 720p or 1080p format and supports all Wii display modes (NTSC 480i 480p,PAL 576i). Wii to HDMI, a converter for the Wii console, outputs video
WII to HDMI Converter Adapter 720P 1080P HD Video Audio Upscaling For Nintendo
Wii To Hdmi Adapter
Small But Powerful for Wii to for Hdmi Adapter Support All for Wii Display Modes (ntsc, Pal 480i, 480p, 576i) Small in S - AliExpress
PORTHOLIC Wii to HDMI Converter 1080p for Full HD Device, Wii HDMI Adapter with 3,5mm Audio Jack&HDMI Output Compatible with Nintendo Wii, Wii U, HDTV
Hardware Review: Wii2HDMI Adapter from Electron Shepherd - Hackinformer
The Monoprice Blackbird HDMI Extender can transmit HDMI video to distances up to 328 feet (100 meters) over a single Cat6 Ethernet cable. It provides a bandwidth of 6.75 Gbps and supports 1080p video resolutions, 12-bit per channel Deep Color, and 48 kHz LPCM digital audio. It features an IR blaster which gives you the ability to transmit infrared remote control signals, allowing for truly remote control of your equipment.
Monoprice Blackbird HDMI Extender Over Single 100m Cat6 (TCP/IP) with IR Support
Hispeedido N64Digital HDMI-Compatible MOD Kit N64 Digital to Digital HDMI- Compatible Mod Kit For N64
AV2HDMI Problems : r/wii
HDMI Kit V0.4 Line Doubler Adapter For Wii Game Console HDMI Board - AliExpress
PS2/WII/N64 TO HDMI-Compatible Converter Game Console Adapter For Nintendo
Full-size HDMI Wii using Electron Shepherd's Analog2HDMI. : r/WiiHacks
