This Video Artifact Premium example shows a typical post-production source quality restoration. The original video is a 1920x1080 25p AVCHD MTS file from Sony NEX-5. This camera is the first model from the Sony NEX series. The sensor reading is limited, so we have aliasing artifacts. Also it uses very low AVCHD 1.0 bitrate ~17 Mbps. The image has color aliasing artifacts, and resolution is very low.
It is too simple to remove these artifacts with VA Premium. But this example has a complication. There is a small sharping against the sky. So compression artifacts are very visible. I used more denoising and more antialiasing to get better result. Only non-important image areas get details lost. I did not used sharping in this example, but is too easy to add it. I have checked it, no artifacts after sharping is visible.