Method and apparatus for storage and insertion of advertisements

A system comprising:

• a processor;
• and
• a memory storing instructions that, when executed by the processor, cause the processor to perform operations comprising:
• detecting a substitution signal;
• and
• in response to detecting the substitution signal, inserting an advertisement into a media stream,
• wherein the advertisement is selected based on an advertising fee associated with insertion of the advertisement into the media stream,
• wherein the advertising fee is a first fee when the advertisement is a local advertisement for a provider of a product or service and the advertisement is to be inserted at a first location in the media stream that follows a national advertisement for the product or service, and
• wherein the first fee is distinct from a second fee that is associated with insertion of the local advertisement at a second location in the media stream.

A device comprising:

• a receiver configured to receive a media stream from a media content source;
• a memory configured to store a plurality of advertisements;
• and
• a processor configured to:
• detect a substitution signal embedded in the media stream, wherein the substitution signal indicates that an advertisement is to be inserted into the media stream;
• and
• select a particular advertisement to be inserted into the media stream, wherein the particular advertisement is selected from among the plurality of advertisements based on an advertising fee associated with insertion of the particular advertisement into a particular location in the media stream,
• wherein the advertising fee is a first fee when the particular advertisement is a local advertisement for a provider of a product or service and the particular advertisement is to be inserted at a first location in the media stream that follows a national advertisement for the product or service, and
• wherein the first fee is distinct from a second fee that is associated with insertion of the local advertisement at a second location in the media stream.