Below I have included a link to the group I was using in the video, which I have named "Deinterlacer_v02"
I chose a group instead of a gizmo because it is easy to just drag and drop into any script without any fuss and will work on multiple machines or networks. Gizmos will break if it cannot link to the main file properly. Anyways just drag and drop this guy into the script and voila, deinterlaced video.
Let me know if it works for you, if it has any bugs, or needs any updates.