Make the itinerary a viewing-time calculation
The official mobile guide describes saving up to ten hours at a time on Android and iOS. That is a service allowance; it is not a claim that every phone has enough free storage for ten hours at the selected quality. Check both constraints independently.
For example, an existing queue totalling eight hours fifty minutes plus a ninety-minute film totals ten hours twenty minutes. Removing a forty-five-minute episode would reduce the proposed queue to nine hours thirty-five minutes. This is planning arithmetic, not a measured download size or a promise that the app will round in a particular way.
Save the episode rather than its series heading
Open the intended programme in the mobile app and use the downward-arrow Save action. For a series, the instructions require selecting a particular episode. A series page that looks familiar does not establish that every episode has been downloaded.
Write a compact journey list with episode names and runtimes. After each download finishes, compare that list with My Stuff, then Saved. This catches the common planning error of saving the first episode while expecting an entire season to be available away from the network.
Replace a completed item deliberately
The guide supplies different removal gestures: the Saved control on Android and a left swipe followed by Delete on iOS. Remove an item you have chosen to replace, then check the queue again before starting the next save.
Do the final check while connectivity remains available. Open the saved item through the app’s Saved area and check the intended episode. Do not rely on a title bookmark, a pending progress indicator or the fact that streaming worked yesterday. Retain time to finish a missing download instead of discovering an incomplete queue at departure.
Questions about this guide
Is ten hours a storage-size guarantee?
No. The documented allowance is viewing time; free device storage is a separate requirement.
Does saving a series page download the whole season?
The mobile guide says to select and save a specific episode.