LCD, weird de-interlacing issue

[Stormwatch]

Remember Strider, and those cool spotlights in the first level? As the MD couldn't do transparencies, the workaround was to make the light beams flicker.



But, playing on sis' Samsung LCD (Gamecube + Genesis Plus + composite video), things are quite different:



Appearently, the TV tries to de-interlace the image, turning "60i" into "30p", and the result is this crap: the solid but flickering lights are turned into a non-flickering beam of alternated lines. It's awful, and I don't think there's a way to turn it off. Have you noticed this kind of issue before? Are all new TVs like that, or is it just Samsung that sucks? I need a new TV, and if this is the way they handle old content, maybe I should look for a new CRT.

[Fudoh]

Your display can't tell 240p from 480i and applies deinterlacing. That's very common on most TVs. This is what I usually call "drop shadow" test, because many shoot'em ups use this 30Hz flicker to simulate semi-transparency on drop shadows (e.g. on ESPGaluda on the PS2).

If you want proper 240p (= working drop shadows) on a LCD you might want to use an external upscaler which can handle this. Check http://retrogaming.hazard-city.de/ for solutions. If you want to test displays for their capabilities, you can use Artemio's 240p test suite for MD, MCD or DC, see here: http://junkerhq.net/xrgb/index.php/240p_test_suite

[Stormwatch]

Thanks for the explanation. Your upscaler guide looks very thorough, but now I'm looking into the easier solution: getting a new CRT.