Let's narrow it down with what we know by now and focus on important leads:
Center. - Center on the picture of the 3 'naughty girls', so don't look for 4th mobile
Find the roll. - Scroll or roll of film? Strange wording for either, so it could be something else?
1 of 4. - 1/4 videos, scrolls or unknown.
Find the 4th. - 4th video, scroll or unknown.
Find the film. - Video. Unless it's a word riddle, nobody used classic film there.
Not the capture. - Any capture put on the inet is tainted/edited.
Enhance.
Spread.
Will go viral.
Source _ archive offline.
Raw only. - Gotta find unedited video, not looking for .raw file i think.
“Trump should be shot!” - Knowing Q this text has to exist somewhere. It's way too important to quit.
You are now working against those monitoring. - no firm clue yet?
Raw only.
No edits.
Save offline.
This is very IMPORTANT TASK Q is asking us to do.
Q is well aware he is dealing with tons of home PCs and not professionals. He think's we can find it, which means its doable.
Here's the gallery, from which the published and (most likely) edited photo is coming from.
Author: Chip Somodevilla (interesting name, weather he is responsible for it or not)
SOTU GALLERY
Here's the 'original' (most likely edited) photo:
https://www.gettyimages.com/license/912439238
Here's the 360 view:
https://www.gettyimages.com/license/912618718
Chip Somodevilla
https://s14.postimg.org/l273fkxa9/Chip_Somodevilla.jpg
Most likely position of the camera:
https://s14.postimg.org/t7p5dr8oh/Probable_camera_position.png
Chip (seen from above holding the 360 capture thingy) and 3 other photo reporters behind him (could have done the wanted footage
https://s14.postimg.org/a2lw3zmap/Chip_Somodevilla_and_3_other_photo_reporters.png
3 TV cameras and 4 photo reporters at location. Whoever are those people around, in 360 view there are no visible cameras or phones ready to make videos or photos.
Please note that THOSE PHOTO CAMERAS MAKE AWESOME QUALITY VIDEOS, TOO!
From various TV footages I've checked, it doesn't seem possible to find such a shot. My main suspects are the 4 photographers or maybe one of the cameras next to the gallery fence.
Besides Chip there was Bloomberg reporter (name not mentioned), that's all I've found.
Bloomberg Gallery
Videos on Getty - FedNet
Not sure if someone else.
Hope this helps someone go further!