There is provided an electronic program guide (EPG) provisioning system that receives traffic data for programming content included in a programming content stream, extracts programming content metadata describing the programming content from the traffic data, and obtains supplemental metadata further describing the programming content. The EPG system further enriches the programming content metadata using the supplemental metadata to produce an enhanced programming content metadata, conforms the enhanced programming content metadata to each of multiple formats corresponding respectively to EPG providers for the programming content stream, and then distributes the enhanced programming content metadata to the EPG providers in real-time with respect to receiving the traffic data.