Seconds elapsed since the break's start when this viewer joined; zero only at the exact start.
OptionalformatDeclared format of the break's selected variant.
Seconds the break is presented for. Always reported: a viewer can be part-way into a break without a tune-in classification (inside the scheduler's start tolerance).
OptionaltunePresent when the viewer joined a break already in progress (tune-in).
Seconds already elapsed since the break's start when the viewer joined.
Effective remaining duration, in seconds, the break is presented for.
Emitted when an ad break starts.