System and method for determining whether to use cached media

A computer system, the computer system comprising:

• one or more processors;
• memory;
• and
• one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for:
• receiving a first request to display a first video stream on the display;
• in response to receiving the first request, displaying the first video stream on the display;
• after receiving the first request, preloading a second video stream that corresponds to live content, wherein preloading the second video stream includes caching a cached portion of the second video stream;
• while displaying the first video stream on the display, receiving a second request to display the second video stream on the display;
• and
• in response to receiving the second request:
• determining whether the second request meets recency criteria;
• in accordance with a determination that the second request meets recency criteria, starting to play the second video stream using the cached portion of the second video stream;
• and
• in accordance with a determination that the second request does not meet the recency criteria, requesting, from a content source for the second video stream, data corresponding to a portion of the second video stream that is outside of the cached portion of the second video stream.

A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer system with one or more processors, cause the computer system to:

• receive a first request to display a first video stream on the display;
• in response to receiving the first request, display the first video stream on the display;
• after receiving the first request, preload a second video stream that corresponds to live content, wherein preloading the second video stream includes caching a cached portion of the second video stream;
• while displaying the first video stream on the display, receive a second request to display the second video stream on the display;
• and
• in response to receiving the second request:
• determine whether the second request meets recency criteria;
• in accordance with a determination that the second request meets recency criteria, start to play the second video stream using the cached portion of the second video stream;
• and
• in accordance with a determination that the second request does not meet the recency criteria, request, from a content source for the second video stream, data corresponding to a portion of the second video stream that is outside of the cached portion of the second video stream.