Planet Green switches on tonight at 6 p.m. EDT. What should we expect? Something they’re calling eco-tainment - a soft-sell with entertainment a bigger priority than education.

And celebrities abound! Tommy Lee and Ludacris will star (in August) on “Battleground Earth,” a series of competitions to determine who’s the greenest. “Entourage” star Adrian Grenier is host of “Alter Eco,” where he and a team of experts show celebrities and ordinary people “the way to a hip green lifestyle.” “Supper Club with Tom Bergeron” brings a chef who cooks a “green meal” while special guests talk about what’s new in the environmental movement.

And although he’s not on camera, Leonardo DiCaprio is behind the series “Greensburg,” which profiles the Kansas town devastated last year by a tornado. Greensburg is being rebuilt in an eco-friendly fashion. In “Wa$ted!,” Annabelle Gurwitch illustrates ways homeowners can simultaneously save money and be friendly to the environment. “Hollywood Green With Maria Menounos,” will showcase celebrities helping the environment. And lots, lots more, of course.

The network will immediately be available in 50 U.S. million homes, nearly half the nation’s cable or satellite customers, because it replaces Discovery Home.

Enjoy.