Recently I started messing with the deflicker option in Smash Bros. and discovered that well there's actually a pretty big difference in how sharp your image will look either in 480i or 480p, I was looking at the GBA emulator Nintendo used in a few demos and neither use deflicker. And that emu only supports one display size which is 480x320, no deflicker and since it ends up so small that not using deflicker makes small details sharp and brighter. Because of this I added an option in RetroArch to disable it and imitate Nintendo's emu, it's also worth mentioning that using bilinear filtering already takes care of flickers so why have them both at the same time?
In the case of WiiMC it's a bit different as I'm imitating the Netflix channel which doesn't use it.
YouTube does use it however and that app is really trashy in general. The blurring actually helps YB's poor 360p encodes(the ones the Wii uses normally).
EDIT: Minor update, added two variants one for DVDs and one for square pixels:
WiiMC horizontal width 720, no deflicker
WiiMC horizontal width 704, no deflicker
In the case of WiiMC it's a bit different as I'm imitating the Netflix channel which doesn't use it.
YouTube does use it however and that app is really trashy in general. The blurring actually helps YB's poor 360p encodes(the ones the Wii uses normally).
EDIT: Minor update, added two variants one for DVDs and one for square pixels:
WiiMC horizontal width 720, no deflicker
WiiMC horizontal width 704, no deflicker