Streaming over-the-air TV in VLC, I noticed that some channels have heavy interlacing on the video with motion present. To resolve, I enabled deinterlacing with mode "Yadif" ("Yadif (2x)" consumed too much CPU). Yadif consumes about 60-75% CPU cycles.
- Tools > Preferences > Video
- Set Deinterlacing to "On" and Mode to "Yadif"
Example of how deinterlacing improves video quality: