Why is interlaced footage still being used in professionally-produced videos shot with high-end cameras?
I am not a video expert, but I am sometimes surprised to see interlaced footage in professionally-produced videos shot with high-end cameras. This often gives "combing" artifacts to videos (Youtube videos for example). Some prominent examples can be found in the following videos:
PBS News Hour: the man's arms moving at time 01:42 in this video
Street League Skateboarding: the skateboarder doing an ollie at time 19:57 in this video
It is surprising to me that such professional productions have these artifacts, which significantly reduce the video quality. My questions are:
- Am I correct to assume that these artifacts are due to the camera shooting interlaced video?
- Why is interlacing still used in modern cameras and broadcasts, when it seems that most people are watching on their computers or on streaming services?
- Why isn't the interlaced footage deinterlaced before it is posted to a website like Youtube, which only supports progressive video?