Making commercial video with cesium

General
1

l am using the Cesium for Unreal plugin to create flyover visualizations video. The output is intended for TV broadcasting.If our project using my own satellite imagery and DEMS without using Cesium ion assets.

  1. If our project uses my own satellite imagery and DEMS, and does not use Cesium ion resources. Do we need to purchase a commercial plan?
  2. If we purchase a commercial plan and do not use Cesium ion resources, can we not show the Cesium logo in the video?
  3. If we purchase a commercial plan and use Cesium ion resources, can we not show the Cesium logo in the video?
  4. How do general users display the Cesium logo when using Cesium as a video material?