Simpsons, Vojager, TNG etc. many many times do come as fieldblended!
(NTSC sucks more and more
)
The cartoons for example never have been shot on Video 29.97 but are converted to NTSC 29.97 AND 23.97 use. You can deinterlace these using NO interpolation (Blend=true) but this will result in heavy ugly blendings when playback on pc & ALSO tv!
Vojager, TNG etc, for example do have hybrid content! Awful for encoding purposes as you have to separate the Video from the film contend and thats not just done by static Decimate() settings or even the usage of SmartDecimate()!
So I do assume that your simpson episodes come as 29.97 interlaced
So you can "try" do to a InverseTelecine by Telecide().decimate() but I think there still will be some belndings as most of the moviecontent is made originally in 15fps! which will change in fast moving scenes to 23.976 and thats where for example smart decimate will fail as it could recognise the wanted doubled fields as a pulldown result which also "have to be tretated", ... but in real it doesnt have to
So my recommendation if youre not that in manual field processing via Selectevery() .... do encode that as NTSC interlaced 29.97 (if your Divx gots 29.97) Kdvd but be aware that interlaced encodings do need much more avg bitrate!
Inc.