Connecting multiple game consoles to your TV, how do YOU do it?

You're right, the Sega Saturn does output S-video.

 

16 consoles on 1 tv, that's insane! XD
@Kaikan Monaco: With what program did you make that diagram?

In the SCART and Component AV selector category you can also try and check out the Joytech AV Control Center 2. I've got a few of those, very nice (though one has 1 faulty scart connection).

 

I have an HDMI Hub, so I can connect up to 4 HDMI-enabled devices, through one HDMI Port.
It's quick and painless, no quality issues at all!

I've connected my Mac Mini, CAT-DEV, and Wii U on it, do I want to play Wii U? Press 3. Do I need to work? Press 2. Do I need to find something on Google? Press 1.
My 4th Port is still free, although I sometimes connect my Tablet to my TV, and use it as a work PC (not recommended, as the Tablet always gets overheated quickly).