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The 8K IPTV journal

720 p versus 1080 i for live sport: motion matters too

Not necessarily. Progressive and interlaced video organise moving pictures differently, and the television must process interlaced material correctly. Frame or field rate, source quality, deinterlacing and compression all influence how a fast match looks, so resolution labels alone do not settle the comparison.

Illustrated guide: 720 p versus 1080 i for live sport: motion matters too
Is 1080 i always better than 720 p for sport?

Not necessarily. Progressive and interlaced video organise moving pictures differently, and the television must process interlaced material correctly. Frame or field rate, source quality, deinterlacing and compression all influence how a fast match looks, so resolution labels alone do not settle the comparison.

Understand the letters

The p in 720 p means a complete progressive picture is presented for each frame. The i in 1080 i means alternating fields carry different lines from successive moments. Interlaced video needs deinterlacing before it can be shown properly on a modern progressive display, and poor processing can damage motion.

Watch lines during movement

Look at a player’s legs, pitch markings and a scrolling scoreboard while the camera moves. Comb-like edges suggest that fields are being combined incorrectly. A soft but stable progressive picture may be preferable to an interlaced version that produces jagged motion, even when its vertical number is larger.

Test the player processing

If available, try the player’s automatic deinterlacing mode and compare with its other supported options. Change one setting, replay the same passage and return to the original if the result is worse. Do not assume the internet connection is at fault when the stream plays continuously but moving edges look wrong.

Questions about this topic

Does 1080 i mean 1080 complete frames per second?
No. The number refers to vertical image structure, not that frame rate.
Can a television deinterlace automatically?
Many can, but the quality and supported input paths differ.

Sources & further reading

Keep reading

Related guides.

Illustrated guide: Planning a live sports evening before kick-off

Planning a live sports evening before kick-off

Get the television, player and household viewing arrangements ready before the broadcast begins. Work out the event’s local start time, allow for pre-match coverage, and avoid using the final minutes before kick-off for installation or account changes.

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