I don't have time right now to really analyze each and every one of Viacom's channels right now (I'll leave that to TV Tropes' "network decay" pages), but to give you some food for thought, here are the Top 5 Basic Cable Networks of August 2018 (Prime Time)
Fox News (2,299,000) / +4 percent
MSNBC (1,845,000) / +1 percent
HGTV (1,363,000) / -5 percent
USA (1,326,000) / -12 percent
History (1,087,000) / +3 percent
Fox News (2,299,000) / +4 percent
MSNBC (1,845,000) / +1 percent
HGTV (1,363,000) / -5 percent
USA (1,326,000) / -12 percent
History (1,087,000) / +3 percent
MTV by the way, is all the way at 27 on the list, And as of November 2018,the list is still leaded by USA, FOX NEWS, MSNBC, HGTV, FX with the only Viacom channel leading is Nickelodeon. And even that seems very on and off.