Oki has developed IPTV Audience Rating Information System to enable service providers in Japan, with the authorization of users, to obtain information about when and which channel and programs the users watched. The system will collect the viewership data in the form of an "audience rating library" on the user's device, which will then be encrypted, sent to and registered in the database server at the IPTV distribution center. This information will then be printed out as viewership reports which service providers can offer to program producers.

IPTV service is expected to grow as telecom carriers in Japan will increase their IPTV service provisioning with the start of next-generation network (NGN) services, and the ITU working on setting international standards.