Measurements and retention
The public live index refreshes periodically. Compact observations are stored in 15-minute buckets for no more than 120 days; complete source responses are not retained as historical dumps.
How Teenroom18 calculates rankings and trends
This guide explains which signals we use, how often they refresh and where the limits of a live snapshot lie.
Viewer counts
Viewer counts are public source readings at one moment. They can change quickly and do not represent audited unique people.
Most Watched
This list sorts currently live profiles by the latest available viewer reading. Page titles do not change with these volatile figures.
Rising and Trending
Rising compares meaningful observations from different time buckets. Tiny changes such as 1 to 3 are excluded. Trending growth is shown only when a usable baseline exists.
New and Returning
New uses a source signal or our first observation. Returning is only used when sufficient history supports a prior absence and a new live observation.
Averages, medians and activity
Averages, medians and peaks use recorded observations only. Activity charts show observed live moments in UTC and are not a guaranteed broadcast schedule.
Teenroom18 Live Score
The score combines 30% relative audience, 25% measured stability, 20% profile completeness, 15% current activity and 10% trend momentum. Missing signals are not invented.
Data limitations
An offline moment may be absent when a source does not return the profile. This is why activity is labelled observed activity. The score is an editorial algorithm, not a review, certification or user rating.