TV Announcement Filter - An announcement filter distinguishes between those announcements that could be of interest to a particular platform and the announcements that are not applicable to users using an incompatible platform.  For instance, if a viewer is using an OpenTV platform and another is using a Microsoft MSNŽTV platform, if the interactive TV content is only available for the viewer using MSNŽTV (or vice versa,) then the announcement filter would make sure the OpenTV platform viewers would be not be alerted as to it's existence.

Channel Announcement

Enhancement Announcement (TV)

Announcement Manager (TV)

Current Announcement