The uplink/downlink configuration primarily used for commercial network TV and radio is?

The point-to-multipoint configuration is commonly used for commercial network TV and radio because it allows a single transmission source to efficiently reach multiple receivers simultaneously. In this configuration, a central transmitter sends signals to multiple receivers, enabling broadcasters to distribute content like television programs and radio shows to a wide audience without needing separate connections for each user.

This setup is especially effective in broadcasting scenarios where the goal is to cover large geographic areas with a single signal. It minimizes the infrastructure and costs associated with sending separate signals to each individual receiver. Broadcasting services can effectively use this method to reach thousands or even millions of listeners and viewers at once, making it a favored choice in these industries.

In contrast, other configurations, like point-to-point, are typically more suited for direct communication between two specific entities and are not scalable for broadcasting to large audiences.