Are you trying to interpolate to 59.94p then re-interlace for NTSC?
Code:
a = MPEG2Source
###ODD FIELDS INTERPOLATION using "FILLDROPS"
a
AssumeTFF()
SeparateFields()
SelectOdd()
odd = last
super_odd=MSuper(odd,pel=2)
vfo=manalyse(super_odd,truemotion=true,isb=false, delta=1)
vbo=manalyse(super_odd,truemotion=true,isb=true,delta=1)
filldrops_o = mflowinter(odd,super_odd,vbo,vfo,time=50)
ConditionalFilter(odd, filldrops_o, odd, "YDifferenceFromPrevious()", "lessthan", "1.3")
odd_filtered=last
odd_filtered
bob #interpolated 29.97p now
###MFlowFPS for 2x framerate (or use interframe instead)
source=last
super = source.MSuper(pel=2)
backward_vec = MAnalyse(super, overlap=4, isb = true, search=3)
forward_vec = MAnalyse(super, overlap=4, isb = false, search=3)
source.MFlowFps(super, backward_vec, forward_vec, blend=false, num=60000, den=1001)
#59.94p now, reinterlace if necessary