Videocast service architecture

A videocast service may include at least one computing device configured to provide operations including: receiving an indication, from a videocast subscriber device connected to a communications network of network service provider, to begin providing a videocast from the videocast subscriber device according to selection of a videocast control from a user interface of the videocast subscriber device; validating the subscriber device as having opted into use of the videocast service by way of the network service provider; and if the subscriber device is opted in, initiating the videocast without requiring further user interface interaction from the videocast subscriber device.