Sega Master System (Genesis) - OSSC Pro and Legacy AV In

(best viewed at 1440p or 1080p, and at a multiple of 60 Hz)
Also I made some editing mistakes, probably one of the sloppiest things I've thrown together, sorry. This is just posterity footage, and gets the point across anyway.
These are the software and games represented:
SMS Test Suite by Sverx -- 0:00 - 2:16, 21:10 - 23:20
Sonic the Hedgehog -- 2:17 - 5:20, 23:21 - 26:35
Aladdin -- 5:21 - 7:25, 26:36 - 28:40
Hang-On -- 7:26 - 8:33, 28:41 - 29:26
Phantasy Star -- 8:34 - 10:51, 29:27 - 31:43
Wonder Boy III -- 10:52 - 13:08, 31:44 - 34:00
Power Strike/Aleste -- 13:09 - 16:03, 34:01 - 36:25
Ninja Gaiden -- 16:04 - 21:08, 36:26 - 41:34
Alex Kidd in Shinobi World -- 41:35 - 42:52 (RGB only)
This video is demonstrating how the OSSC Pro processes Master System games. However, something to note right away is that I'm using Genesis hardware running in its backward compatibility mode.
Master System units are less common here in the US, and seeing how there's very few downsides to using a Genesis, it just makes sense for me to source them for this use case.
Genesis/Mega Drive games and its add-on hardware are complex enough to warrant their own video imo, so I broke off Master System into its own.
Since the Genesis (and SMS) can natively output RGB, however seldom it may have been used in the SMS days, I figured I would show both NTSC/CVBS and RGB.
My Genesis doesn't have anything printed on its silk screen for easy identification, but it's probably a Model 1 VA6 given it still has an EXT port, but also has TMSS.
This model's NTSC output is about as good as I've seen it get on Genesis hardware--which isn't exactly amazing, but a good improvement over the noise and poor color encoding you can expect from VA2 or launch Japanese units.
Here are the relevant settings I settled on for the Legacy AV In:
Contrast: 158
Shaping Filter Y: NTSC 6
Shaping Filter C: SH1
NTSC Comb C taps 3-2
NTSC Comb C mode: Adaptive
NTSC Comb Y mode: Fixed (bottom)
Assume all other settings are defaults.
I'm very pleased with the quality of this image. I'll admit, I don't think SMS games are by and large begging for cvbs just due to how the VDP guides the hands of artists and how often games on this platform feature simple and clean aesthetics, but it's still a vibe I can certainly appreciate, and the OSSC Pro definitely makes it look palatable with the SH1 Shaping filter keeping a lot of that rainbow noise down.
It also ought to be said that a lot of equipment can't really deal with this signal at all--a RetroTINK2x can't make sense of the color burst, koryuu can mostly get Genesis games right, but something about the SMS mode throws the color burst out of wack, and my XRGB-3 has some pretty bad shaping problems with the SMS mode.
The OSSC Pro and Legacy AV In combo is the first time I've ever been able to capture this with good results!
As for the RGB side of things, here are the relevant settings I settled on:
Video LPF: 30 MHz
(gave me the brightest picture with the least noticeable jailbars)
Reverse LPF: 0
(I will use this later on some other sources, but here it makes the jailbars more noticeable, so it stays off)
And in the line multiply or scaler settings, use the 256x224 Gen/MD presets to get optimal pixel sampling.
If you have modded your Sega console to reduce jailbar visibility, you may find different settings more suitable.
One last bonus at the end of this video with the Alex Kidd footage is demonstrating how when using the OSSC Pro's scaler, you can crop out all of the ridiculous overscan border that is just "kinda' a Master System thing."
I demonstrated how I might play and capture it in my leisure time. Normally this game has an obnoxiously bright color in that overscan boundary that would have been at least partially visible on most tube TVs. However, for the sake of this series, I'm not cropping any overscan area just so you can see all details of the OSSC at work.
Well, I think that's about it for explanations, if you have any questions, go ahead and ask away in the comments.