I have a short 4:30 piece shot using an EX1 in 1080p30 VBR that was originally delivered on SD DVD. I used FCP and Compressor to prepare the content. The client now wants it delivered for NTSC-480i for inclusion in a broadcast piece. What is the best way to interlace the content? Until the EX1, I always shot interlaced and had to "go the other way" when needed.