We have had a lot of questions on our forums about interlaced video, so I thought I would write a series of articles to clear everything up once and for all! 
Where did interlacing come from?
Back in the day, when me and my buddies were developing broadcast television, we were going to model it on film, which took a sequence of photos of reality, so, if a blue circle was moving from left to right, two consecutive frames might look like this:
Instead of the 24 frame per second …
There are several formats of video people call “24p”:
- true 24p
To capture this, you’ll have to create special capture and sequence presets. But it’s a very rare format.
- 23.976
This is more a much more common frame rate. Use the appropriate capture and sequence preset. (Note: FCP calls 23.976 “23.98″ for some odd reason).
- 24p with pulldown (actually 29.97 fps, aka 59.94 fields/sec, aka “60i”)
Capture and edit using 60i presets.
- 24p “advanced” (2:3:3:2 cadence - actually 29.97 fps, aka 59.94 fields/sec, aka “60i”)
Use the capture preset in FCP titled “DV NTSC 48 kHz Advanced (2:3:3:2) Pulldown Removal”. This preset will capture at 29.97 (that’s what
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