A method of managing video programs and associated program components on a storage unit of an electronic device is provided. A total number of playbacks of each video program stored in the storage unit and a total number of playbacks of each program component stored in the storage unit for each of the video programs are tracked. A percentage of playbacks of each program component stored on the storage unit relative to the total number of playbacks of its corresponding video program is determined. From this, candidates of program components for deletion from the storage unit are identified based on the values of the determined percentages. The tracking, determining and identifying steps of the method are performed by electronic components of the electronic device. A device is also disclosed.