Basic Cable has become a vast wasteland.
I still watch PBS a lot, although it leans to the left politically (but I can pick out the political propaganda when I see it).
I also watch History when they interrupt their shows about Big Foot, Ancient Aliens, Pawn Stars, and Ice Road Truckers for something that is actually about history.
C-SPAN 3 has good and at times even great historical programming on the weekends, but C-SPAN also leans to the left politically.
I haven’t watched the Big Three American networks for many years; I turned off FOX when Sean Hannity infamously responded with a tirade directed at Father Thomas Euteneuer on Hannity & Colmes.
MAS*H was the last sitcom I watched on a semi-regular basis, and once the character Hawkeye became chummy with the North Korean P.O.W.s, I should have known better and turned it off, but I was young and unaware back then.
I sometimes watch Canadian TV, their shows on science, their news, history and documentaries, but the viewpoints expressed on the CBC are also politically left or filtered through Secular Humanism.