I also have a question about deinterlacing, so I thought I wouuld piggyback my question with yours. I am taking mpegs from archive.org and converting them to .mov with mpeg streamclip. Although the faq on archive.org says that the footage should require no deinterlacing, I seem to get interlaced footage as a result of the conversion. Am I doing anything wrong on the conversion? I choose do not deinterlace, and lower dominance, as the archive.org faq instructs… I just wonder if there’s a setting that is automatically chosen that I should uncheck, or something to that effect. Any help is appreciated.