A broadcast system and method of changing allocations therein include a plurality of broadcast system components and a broadcast operation channel management system having a database. The broadcast operation channel management system generates a first allocation chart for the broadcast system with a first effective time and communicates at least a portion of the first allocation chart to the plurality of broadcast system components. The plurality of broadcast system components determines a local time and when the local time is equal to or greater than the effective time, operates with the first allocation chart. The broadcast operation channel management system generates a second allocation chart for the broadcast system with a second effective time. The broadcast operation channel management system communicates at least a portion of the second allocation chart to the plurality of broadcast system components. The plurality of broadcast system components operates with the second allocation chart when the local time is equal to or greater than the second effective time.

A broadcast system and method of changing allocations therein include a plurality of broadcast system components and a broadcast operation channel management system having a database. The broadcast operation channel management system generates a first allocation chart for the broadcast system with a first effective time and communicates at least a portion of the first allocation chart to the plurality of broadcast system components. The plurality of broadcast system components determines a local time and when the local time is equal to or greater than the effective time, operates with the first allocation chart. The broadcast operation channel management system generates a second allocation chart for the broadcast system with a second effective time. The broadcast operation channel management system communicates at least a portion of the second allocation chart to the plurality of broadcast system components. The plurality of broadcast system components operates with the second allocation chart when the local time is equal to or greater than the second effective time.

A video synchronization apparatus and method by adding sync data to an ancillary data space of a video signal are provided. A sync data adding apparatus may include a sync data generator to generate sync data; and a sync data adder to add the sync data to an ancillary data space of a video signal.

A video synchronization apparatus and method by adding sync data to an ancillary data space of a video signal are provided. A sync data adding apparatus may include a sync data generator to generate sync data; and a sync data adder to add the sync data to an ancillary data space of a video signal.

In one embodiment, a method provides a manifest for a media program to a client. The manifest includes a set of bitrate representation links that correspond to a set of bitrates. A pointer is maintained to at least a portion of a current segment that is currently being presented in the media program. A request is received using a bitrate representation link in the set of bitrate representation links. The method then selects at least the portion of the current segment using the pointer for the bitrate that corresponds to the bitrate representation and sends the at least the portion of the current segment to the client.

An apparatus, method and data structure for generating at least one table in a broadcast environment, are provided. The apparatus includes a generator to generate an event information table (EIT) and an extended text table (ETT). The ETT has program guide information for an n-hour span and has a transmission interval. The ETT has a transmission interval and program description information according to the EIT. The transmission interval of the EIT is shorter than the transmission interval of the ETT.

An apparatus, method and data structure for generating at least one table in a broadcast environment, are provided. The apparatus includes a generator to generate an event information table (EIT) and an extended text table (ETT). The ETT has program guide information for an n-hour span and has a transmission interval. The ETT has a transmission interval and program description information according to the EIT. The transmission interval of the EIT is shorter than the transmission interval of the ETT.

In one form, the present teachings provide a method and apparatus for broadcasting an event. The method includes receiving data related to an event via an uplink. Another aspect of the method includes determining whether the data is broadcast on a recurring basis. The method also includes determining whether a transponder channel associated with multiplexed program channels has any unused data or bandwidth to broadcast a portion of the data along with the multiplexed program channels. Additionally, the method includes broadcasting the portion of the data in a data stream.

In one form, the present teachings provide a method and apparatus for broadcasting an event. The method includes receiving data related to an event via an uplink. Another aspect of the method includes determining whether the data is broadcast on a recurring basis. The method also includes determining whether a transponder channel associated with multiplexed program channels has any unused data or bandwidth to broadcast a portion of the data along with the multiplexed program channels. Additionally, the method includes broadcasting the portion of the data in a data stream.

An exemplary method includes a media content delivery system transmitting a transport stream containing an advertisement channel and a program channel, the program channel carrying a media program stream at a first bit rate, detecting an upcoming advertisement break within the media program stream, inserting, in response to the detecting of the upcoming advertisement break, an advertisement content stream having a second bit rate that is lower than the first bit rate into the program channel to temporally coincide with the advertisement break to free bandwidth in the transport stream during the advertisement break, and inserting an additional advertisement content stream in the advertisement channel, the additional advertisement content stream temporally coinciding with the advertisement break and utilizing at least a portion of the freed bandwidth in the transport stream. Corresponding methods and systems are also disclosed.