SPI International / FILMBOX Channels Group will be launching six international thematic channels on Sling TV in the U.S. SPI’s channel package on Sling TV incudes DocuBox HD, FightBox HD, FashionBox HD, Fast&FunBox HD, 360TuneBox and NatureVision TV. The service also provides for Polish-American viewers two ethnic channels from SPI’s catalog, Kino Polska International and Kino Polska Muzyka International.