That happens with every cable channel. They bootstrap with something cheap, and then go through a phase where they have better access to the thing they are supposed to focus on, then they make their own shows, then they realize that if they're making their own shows, it would be cheaper to just air wrestling and reality tv shows than to actually produce something.
For instance Syfy, which started out showing Forbidden Planet and Gamara reruns, at one time had a show with incredible effects done by the Jim Henson company, and now is down to a show about people competing in one-off puppetry contests hosted by the Jim Henson company, and the requisite something night wrestling show (a quasi-reality show starring stunt-men instead of using stunt-men to produce movies and such)
At least they change their name every time they make a change to be more disappointing. Is there anything educational on TLC any more?
The weird thing is that a lot of cable channels are under the umbrella of one of the big networks, so it makes little sense why instead of pursuing their respective niches, or abandoning the channels, they all go for the same "broad appeal" crap.