It will deliver video-on-demand to millions of households that have the device and an internet connection.
The plan is to generate more of its revenues from content - and the advertising that goes with it.
The service will be begin in Japan this spring but could be rolled out globally by the end of the year.
Some 40 million households throughout the world have a Wii and almost half (18m) are connected to the internet.
Broadcasts will be made exclusively for the Nintendo channel and will include cartoons, cookery programmes, brain-training quizzes and lifestyle shows.
Most of the content will be free but Nintendo could make some programmes pay-per-view.
Customers would be able to pay through the existing Wii Point payment system, that can already be used to pay for access to some games.
Japanese television executives are thought to be worried about the possibility of the Wii becoming, as one called it, "the centre-piece of the living room".
Such a development would be "the stuff of television producers' nightmares", an executive at Fuji Television, Japan's biggest commercial broadcaster, told The Times.
About 3.5m of the £180 Wii units have been sold in Britain, making it one of the most popular games consoles on the market.
Source : http://www.telegraph.co.uk/