Fit normally keeps the whole picture visible while preserving its proportions. Fill covers the screen and may crop edges. Zoom enlarges the image, while stretch may alter its shape. Exact labels vary, so check faces, captions and borders after changing the setting.
Choose the priority first
For sport, edge information such as scoreboards and touchlines can matter. For a film, preserving the composition is usually more useful than eliminating every bar. A decorative clip has different needs. Decide whether you need the full frame or maximum screen coverage before trying a sequence of sizing modes.
Inspect a paused reference
Pause on a scene containing a person, a circular object and text near an edge if possible. Cycle through the available options and note what disappears or changes shape. This is easier to judge than a fast montage and helps distinguish uniform cropping from a genuine proportion error.
Reset after exceptional sources
A manual zoom can remain active when you change channels or open another file. Return to an aspect-preserving default after using a crop for one unusual source. If the player remembers settings per channel, document that behaviour for the household so a later clipped picture is not mistaken for a new service fault.
