You can connect a Wii to a ProScan TV, but only via composite (yellow/red/white) — resulting in poor quality.
| Wii Output | ProScan Input (Typical) | Result |
|---|---|---|
| Component (YPbPr) — 480p | Rare on ProScan (usually no component) | Best — but unlikely |
| S-Video — 480i | Rare | Good — but unlikely |
| Composite (Yellow RCA) — 480i | Standard on all ProScan | Works — blurry, color bleed, no progressive |
| RF (Coax) — Ch 3/4 | Yes (antenna in) | Worst — noise, mono audio |
ProScan TVs don't have AOSS (Buffalo router feature). Irrelevant to Wii connection.
Bottom line: Works on composite, looks bad. $15 Wii2HDMI fixes it acceptably. New TV fixes it properly.