If you're playing XCOM on PC, you might have noticed a little discrepancy between the standard in-game visuals and those of the game's cutscenes, which can look a little blurry.
You can actually change that. Reddit user loinbread did some looking through the game's folders and found that, in addition to the video files that play by default, the PC version includes the same clips in 1080p, resulting in much nicer videos.
All you need to do to enable these is to...batch rename all the files. That or wait for Firaxis to release an update that lets you select it as an option.