Additional SPI Channels Launch on Sling TV in the U.S. Sara Alessi March 15, 2017 Top Stories WARSAW/MERIDIAN: SPI/FilmBox Channels Group has rolled out two additional thematic channels in the U.S. on Sling TV. The content you are trying to access is only available to members. Log In Register FilmBox Arthouse Gametoon Sling TV SPI/FilmBox Channels Group 2017-03-15 Sara Alessi Share