Antique background video has no watermark.

Video material without watermark can be found through some material websites, and can also be processed through some de-watermarking software.

There are several methods to remove the watermark: 1. Where the watermark is directly embedded. 2. Remove all the watermarked areas and replace them with something or a picture, which is equivalent to covering them, which is roughly the same as the mosaic method mentioned above. 3. Cover with words. 4. Get the original video.