Abstract: Media system control and advertisement technology, in which input related to advertising preferences of a user of a media system that is connected to a content delivery network is received. An advertisement control policy is defined for the user of the media system based on the received input. During viewing, on the media system, of a channel provided by the content delivery network, the media system is controlled to deliver advertisements based on the defined advertisement policy.

Abstract: Media system control technology, in which an advertisement on a selected content channel being experienced by a user using a media system is detected, advertisement preferences of the user are accessed from electronic storage, and secondary content is selected based on the accessed advertisement preferences of the user. The secondary content is substituted for the advertisement on the selected content channel, and the media system is controlled to output the secondary content instead of the advertisement.

Abstract: Website presence includes receiving aggregated website presence information describing website presence information for one or more objects of a website, and displaying the aggregated website presence information based at least in part on a website object profile for an object of the website. Cross-website presence includes receiving aggregated website presence information from a first one or more websites, and publishing the received aggregated website presence information to one or more subscribing websites. The website presence information describes one or more of the state of a website object regarding its participation in a communication session, the ability of the website object to participate in a communication session, and the willingness of the website object to participate in a communication session. Each of the one or more objects represents an entity associated with the website.

Abstract: Index channel technology, in which input to display an index channel is received from a user identity and an index channel definition for the user identity is accessed. The index channel definition defines a sequence of content preview files for content files organized within channels. Display of the index channel is controlled by displaying the content preview files in the sequence defined by the accessed index channel definition and, during display of the content preview files in the sequence defined by the accessed index channel definition, a selection is received to view a content file that corresponds to a content preview file being displayed in accordance with the accessed index channel definition. Display of the content file is controlled and display of the index channel is returned at a position within the sequence of content preview files that corresponds to the received selection.

Abstract: Content sorting and definition technology, in which input defining multiple content links to include in a channel is received from a content curator and supplemental channel information that facilitates user experience of content linked to by at least one of the multiple content links is determined. Channel information for the channel associated with the content curator is defined based on the multiple content links and the supplemental channel information and the defined channel information is published at a channel link to make the channel information available to user devices of a content delivery network. The channel link is a network address at which the defined channel information is made available to the user devices of the content delivery network.

Abstract: Website presence includes receiving aggregated website presence information describing website presence information for one or more objects of a website, and displaying the aggregated website presence information based at least in part on a website object profile for an object of the website. Cross-website presence includes receiving aggregated website presence information from a first one or more websites, and publishing the received aggregated website presence information to one or more subscribing websites. The website presence information describes one or more of the state of a website object regarding its participation in a communication session, the ability of the website object to participate in a communication session, and the willingness of the website object to participate in a communication session. Each of the one or more objects represents an entity associated with the website.

Abstract: Content interaction technology, in which data used in defining a point of interest that supplements content arranged in a channel is accessed. The accessed data defines timing information that indicates when the point of interest is used, output information that defines how the point of interest is output, and action information that defines one or more actions that occur based on user interaction with the point of interest. The point of interest is defined based on the timing information, the output information, and the action information and associated with the channel and/or a content link arranged in the channel. During a time at which a user has selected the channel, output of the point of interest in addition to content defined by the channel is controlled. An indication that the user interacted with the point of interest is received and an action defined by the action information is performed.

Abstract: Content sequence technology, in which a channel subscribed to by a user of a content delivery network is identified and a genre of the identified channel is determined. A play sequence policy is selected for the identified channel based on the determined genre. The play sequence policy defines one or more rules used in determining an order to play content files on the identified channel. Display of the identified channel is controlled based on the selected play sequence policy.

Abstract: Media system control technology, in which an advertisement on a selected content channel being experienced by a user using a media system is detected, advertisement preferences of the user are accessed from electronic storage, and secondary content is selected based on the accessed advertisement preferences of the user. The secondary content is substituted for the advertisement on the selected content channel, and the media system is controlled to output the secondary content instead of the advertisement.

Abstract: Subscription and channel management technology, in which a system allows a user to subscribe to a subset of the available channels on a content delivery network and personalize at least one channel. The system identifies a user identity of the user and stores, in a user database, channel subscription information for the user identity based on the subset of channels to which the user subscribed and the user personalization. The system identifies a downloader device associated with the user identity and controls the downloader device based on the channel subscription information stored in the user database.

Abstract: Storage management technology, in which a system determines a first amount of storage space on a downloader device of a user that is available for download of new content made available on channels subscribed to by the user. The system also determines a second amount of storage space needed to download new content that has been made available on channels subscribed to by the user. The system further compares the second amount of storage space to the first amount of storage space and determines whether the second amount of storage space exceeds the first amount of storage space. Based on a determination that the second amount of storage space exceeds the first amount of storage space, the system controls downloading of the new content to the downloader device and deletion of previously-stored content on the downloader device based on a content allocation policy.

Abstract: Caching related technology, in which a time needed to begin rendering network-based video content without caching a decoded version of the content is determined and, the determined time to begin rendering the network-based video content is compared to a threshold time. When the determined time to begin rendering the network-based video content exceeds the threshold time, an initial portion of the network-based video content is pre-transcoded to a faster video codec format, and the pre-transcoded initial portion of the network-based video content is stored in electronic storage associated with a media system of a user.

Abstract: Media system control technology, in which an advertisement on a selected content channel being experienced by a user using a media system is detected, advertisement preferences of the user are accessed from electronic storage, and secondary content is selected based on the accessed advertisement preferences of the user. The secondary content is substituted for the advertisement on the selected content channel, and the media system is controlled to output the secondary content instead of the advertisement.

Abstract: Content monitoring and control technology, in which content download activity, content playing activity, and/or remote control activity of a media system is monitored. Data descriptive of use of the media system is tracked based on the monitoring of the content download activity, the content playing activity, and/or the remote control activity. One or more operations are performed based on the tracked data descriptive of use of the media system.

Abstract: Content sequence technology, in which a channel subscribed to by a user of a content delivery network is identified and a genre of the identified channel is determined. A play sequence policy is selected for the identified channel based on the determined genre. The play sequence policy defines one or more rules used in determining an order to play content files on the identified channel. Display of the identified channel is controlled based on the selected play sequence policy.

Abstract: Media system control technology, in which an advertisement on a selected content channel being experienced by a user using a media system is detected, advertisement preferences of the user are accessed from electronic storage, and secondary content is selected based on the accessed advertisement preferences of the user. The secondary content is substituted for the advertisement on the selected content channel, and the media system is controlled to output the secondary content instead of the advertisement.

Abstract: Subscription and channel management technology, in which a system allows a user to subscribe to a subset of the available channels on a content delivery network and personalize at least one channel. The system identifies a user identity of the user and stores, in a user database, channel subscription information for the user identity based on the subset of channels to which the user subscribed and the user personalization. The system identifies a downloader device associated with the user identity and controls the downloader device based on the channel subscription information stored in the user database.

Abstract: Content sorting and definition technology, in which input defining multiple content links to include in a channel is received from a content curator and supplemental channel information that facilitates user experience of content linked to by at least one of the multiple content links is determined. Channel information for the channel associated with the content curator is defined based on the multiple content links and the supplemental channel information and the defined channel information is published at a channel link to make the channel information available to user devices of a content delivery network. The channel link is a network address at which the defined channel information is made available to the user devices of the content delivery network.

Abstract: Meta-channels identify content entries and indicate an order with which to experience the content entries. The meta-channels may include a multi-source meta-channel that includes at least a first content entry that relates to first content broadcast by a first content provider at a specific time and a second content entry that relates to second content made available, over a network, by a second content provider in response to user requests. A selection of a meta-channel is received and the selection of the meta-channel is mapped to a content entry defined by the selected meta-channel. A media system is controlled to render content based on a content entry mapped to by the selected meta-channel.

Abstract: Storage management technology, in which a system determines a first amount of storage space on a downloader device of a user that is available for download of new content made available on channels subscribed to by the user. The system also determines a second amount of storage space needed to download new content that has been made available on channels subscribed to by the user. The system further compares the second amount of storage space to the first amount of storage space and determines whether the second amount of storage space exceeds the first amount of storage space. Based on a determination that the second amount of storage space exceeds the first amount of storage space, the system controls downloading of the new content to the downloader device and deletion of previously-stored content on the downloader device based on a content allocation policy.