As far as I am aware, having Viacom channels is the exception rather than the rule for streaming cable providers. Along with Youtube TV, Hulu TV, Playstation Vue, and Fubo TV also do not carry Viacom channels.
Yep, the only carrier is AT&T TV which only comes from AT&T's negotiating weight with U-Verse and DirecTV.
Sling also has Viacom.
It’s missing the Weather Channe and that’s a huge miss.