A method and a non-transitory computer readable medium for evaluating a configuration change of a cable television network, the method may include: receiving, a model of a cable television network, the cable television network comprises multiple service groups, multiple transmitters and at least one session management unit; wherein each service group comprises multiple user devices; receiving or generating, viewers' activity information about viewing patterns of viewers that belong to the multiple service groups; receiving a request to perform a requested change in a current configuration of the cable television network; simulating, by a simulator, based on the model, the viewers' activity information and the requested change, a provision of services to the multiple service groups given the requested change to provide simulation results that represent an effect of the requested change, prior to a deployment of the change in the cable television network.