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

[shijan]

If it helps here is my basic starter pack filters chain for DVDs:
QTGMC Deinterlacer Preset Slower, custom Sharpness 0.3, OpenCL ON
Color Matrix Rec.601 to Rec.709
DeBlock QED
FineDeHalo 2.0...3.0
Sharpen CAS 0.5...0.7
Resize to height 1080
Convert output pixel aspect ratio to 1:1
Resizer NNEDI3 8x4 Neurons256 Network2 NEW GPU on (if you don't have OpenCL GPU use Neurons32 or 64)

SMDegrain TR3 RefMotion DCT0. Turn on OpenCL GPU there as well to speedup processing (there are plenty of other temporal noise reduction filters to experiment)

But it all depends of source quality...