Plex not playing in letterbox

[FordGuy61]

Set display mode to letterbox.

I've somehow made my Plex videos play smaller than before

FireTV / AndroidTV / Android Mobile: During playback, pull up on-screen controls. Select three vertical dots on right edge of screen. Select Playback Settings. Scroll down to Display Mode. [1] [2] [3]

Display Mode settings:

Aspect ratio all wrong on 1080p

1080p is a 1920x1080 rectangle ( assuming not a "wide screen/anamorphic film). a 4k TV is a 3840 x 2160 rectangle. the small rectangle when shown a “original” size is much smaller than the TV. If your movie was 1920x1080 and your tv was 1920x1080 then you would not see any difference when set to original because they are the same size. if your movie was 3840 x 2160 and the tv was 1920x1080 the it would appear zoomed in. Letter box increases (or shrinks) the size until it fits the screen with …