A timeline can represent different information
A media interface may display a played position, a buffered region or an available seek range. Mozilla’s browser references describe these as separate TimeRanges-related observations. A bar extending beyond the current position should therefore not be interpreted automatically as proof that the entire programme is downloaded or permanently retained. First understand what the actual application’s interface represents.
Keep seekability tied to the moment
The browser’s seekable property describes ranges that can be sought at the time it is observed. This matters for presentations whose available span changes. A position available earlier need not remain available indefinitely. Do not promise that an old live point can always be revisited because the player once displayed a longer timeline. The service and presentation arrangement still determine what is offered.
Describe a failed movement precisely
If a seek action fails, note the selected position, whether it lies inside the displayed range and what happens afterwards. A jump outside the current window is different from a player freezing while moving within a supported range. Keep a return-to-live action separate from an arbitrary skip-forward action. The same icon can serve different interface conventions across applications, so use the actual player’s guidance.
Avoid treating a range as ownership
Buffered media and a seekable time span are not evidence of a permanent download or permission to retain a programme. If offline access is required, check the legitimate application’s specific offering. For support, give the device, app, programme mode and observed timeline result without posting private media addresses. The reference explains browser concepts and does not guarantee that every television player exposes the same controls or range information.
Questions, answered
Does a seekable range prove that the programme is downloaded permanently?
No. It describes positions available for seeking at that observation point. Permanent offline access is a separate feature and entitlement question for the actual application and service.