So many basic cable networks start off with a strong, good identity and then over time turn into trash TV.
Here are some examples. Can you think of any exceptions?
The Learning Channel was all educational content, including medical shows and even surgeries. Then it became TLC, a design channel with Trading Spaces, and then polygamy and Honey Boo Boo and morbidly obese people.
Bravo originally featured fine arts, ranging from opera and ballets to Cirque du Soleil. Then it did Queer Eye and Make Me a Supermodel and those reality shows gave way to the Andy Cohen takeover, with unmarried housewives and all programming about drinking, drugging, fucking and cosmetic surgeries.
E! was originally entertainment news and then it became the Kardashian Network.
Lifetime really was originally "television for women," an outgrowth of a nonprofit organization that created the network to raise awareness about women's heslth, domestic abuses, etc., and then it of course did a 180 and became the only network to show women being abused and murdered 24/7 and gems like "Psycho Granny" and "Killer Grandma."
Food Network originally offered cooking instruction and now it's almost all competitive game shows about making foods with gross ingredients.
MTV was simple and successful: Music Television. It played music videos, discussed music industry news, featured a lot of interviews—and then it became the Real World and Road Rules network and totally dedicated to reality TV. No idea what it does now.
VH1 was MTV's lesser sibling, showing less edgy music videos. Now it seems only to show new Drag Race episodes and otherwise just old sitcoms and reality show repeats.
A&E originally featured arts and classic movie. Then it became Intervention, Hoarders and Leah Remini's Scientology show, plus occasional interesting dramas like Bates Motel. It's not the worst fall from grace, but its identity did unravel.
FX set out to be "the HBO of basic cable" and it has had a lot of good shows, but it's interesting that the network originally showed gritty "dude" shows (I think there was even a Maxim magazine TV show?) and now it's The Ryan Murphy Network.