Abstract: Transmission synchronization and bandwidth adjustment in a broadcast system are described. At least one service tool in the broadcast system supplies service information useful for selecting, from a series of broadcast events, broadcast events to be viewed by subscribers of the broadcast system. A conditional access (CA) unit in the broadcast system applies conditional access attributes to the series of broadcast events. Transmission synchronizing apparatus in the broadcast system synchronizes the CA unit and the at least one service tool by instructing the CA unit to blackout a particular event from the series of broadcast events to subscribers that are refused access to the particular event and instructing the at least one service tool to provide a replacement service to the subscribers that are refused access to the particular event.