Methods, apparatus, systems and articles of manufacture are disclosed to monitor on-demand media. Example apparatus disclosed herein include a metadata collection controller to collect metadata associated with on-demand media in response to publication of the on-demand media. Disclosed example apparatus also include a download controller to download the on-demand media. Disclosed example apparatus further include a signature generator to generate one or more signatures representative of the on-demand media, and store a profile of the on-demand media in a data storage, the profile including the one or more signatures and the metadata associated with the on-demand media.