[HELP] NTSC SD master, best De-Interlace?

[shijan]

Note that if your source was shoot on something like Hi8 video camera, captured to ProRes and edited in that native format it could be real 29.970. So you can try to deinterlace with QTGMC Bob to native 59.94 progressive and keep it in that original framerate. Next if required you may somehow downconvert it to 24fps. Anyway as Selur suggested - using QTGMC Bob and looking to preview is the first thing that you need to do to understand what is really going on with your source.