A service in Microsoft Windows 98 that automatically runs in the background when you have WebTV for Windows installed on your computer.
Announcement Manager receives broadcast announcements from TV networks or Web sites that notify your computer about the time and address of the broadcast and which software applications must be running to receive the broadcast. When Announcement Manager receives an announcement, it directs it to the broadcast filters you have configured for your WebTV service. The broadcast filters then determine whether to ignore the broadcast or schedule its receipt.
Announcement Manager is part of the Microsoft Broadcast Architecture, a specification for receiving Web information broadcast to your computer through a TV tuner interface.