At least one media company is taking a get-tough approach to unauthorized streaming of their video productions. Media giant Viacom, owner of Paramount Pictures and cable television staples that include Spike, TV Land, CMT, MTV, and VH1 - as well as Nickelodeon and Comedy Central - has sued the owner of the website nickreboot.com, which operated the private Roku channels Nick Reboot and Cartoon Network Reboot.