I've been doing Game of Thrones, Season 6 "immersion" for the last few days, and have been taking pictures of my screen as the program runs. I don't freeze the frame. That would be disruptive to the story and pedestrian in effect. The camera is hand-held. If I wanted clear, sharp screen-caps there are plenty on Google Images. These are impressions, and impressionistic. Fun!
My favorite ones have lots of motion in them, and the ones I like best come with fades/transitions, because I get a double-exposure effect.
I clean them up in Photoshop a little - mostly using Free Transform to square the images up. I do a bit of contrast tweaking and sometimes punch the saturation a little. The effect is interesting to me. It's sort of how my memories of the show are - fuzzy, and not all there.
Check it out...