Some interlacing artifacts remain after Telecide()

[sigma2x]

Hello again,
It has been a while since I have used avisynth, and as the title suggest, I have a small problem with an NTSC video.

This is what happens after using this as my script.
mpeg2source("VTS_01_4.d2v")
telecide(guide=1, post=2, vthresh=30)
decimate()
http://drive.google.com/uc?export=view&id=0BwODiBEjIqYbY0Z1R0F0QVhQVU0

There is a "bitty-ness" around the white edge on the guitar, and there are some lines that look like interlacing.

Here is a short sample clip.
https://docs.google.com/file/d/0BwODiBEjIqYbTnVZUXJsSzBGdHM/edit?pli=1

[Guest]

If you view with post=0 you can easily see that the problem is in the source.

[sigma2x]

Thank you Neuron.
I was hoping that this NTSC version would be better than the PAL version.

Would it be pointless to try to fix it?