Sling TV Adds 9 Discovery Networks to Streaming Lineup

News The Discovery Channel and TLC are now available as part of the Sling Blue base package, and MotorTrend (formerly Velocity) has been added to the Sling Orange package. Investigation Discovery (ID) is now part of both base packages, which still cost $25 per month each or $40 per month when purchased together. Staff Author: Bevin Fletcher Topics: Video