Downscaling Chronicles 2: GBS-C 480p 720p & 1080p downscale to 240p on a CRT TV/PVM with GBS Control

The second episode of the Downscaling Chronicles features the GBS-Control (AKA GBS-C 8200 and 8220), which is widely considered one of the fastest and cheapest 480p to 240p downscalers that kicks the Extron Emotia envy to the curb. Although it can accept 480i on the input for downscaling or passthrough, it cannot output 480i. Furthermore, it cannot accept higher resolutions on the input such as 720p and 1080p, which prevents downscaling a PlayStation 4 Pro, PS5 or Evercade. I explore the idea of another scaler handling these resolutions to drop down to 480p for the GBS to further downscale to 240p to play on a 15KHz widescreen CRT and a Sony BVM 20F1 for sweet, juicy scanlines. This HDMI to component scaler was purchased in 2018, has no obvious branding and appears to be discontinued. It can input and output 480i to 1080p at 50 or 60Hz; therefore closing the gap for the GBS-C to other downscalers such as the RetroTink5x, Dexx De-10 add-on, TVOne Corio2 scalers and the upcoming Pixel FX Morph. But will it perf