In one embodiment, a method receives information describing programs for a channel over multiple time slots. Audience definitions are generated for the programs defining parameters for selecting a respective source stream for delivery to users. A bundle is stored for each audience definition. A request is received for the channel from a user. The method then generates a viewer definition for the user based on a current status of the user, wherein the viewer definition includes user information for the user. In response to receiving the request, a manifest is constructed for the channel using a set of bundles that includes audience definitions that match the viewer definition. Only one bundle per time slot is selected for the manifest. Portions of the manifest are provided to a client device to allow the client device to request content from the channel.