$1:
Since the channel was first brought into the CTV stable in 2006-2007, and more rapidly since Bell bought back CTV in 2010, Bravo has concentrated more and more on U.S. dramas and less and less on arts programming.
In academic circles, this is known as the homogenizing effect of capitalism. Big money moves in, takes over and changes the market to appeal to the lowest common denominator because thats where the biggest returns are to be had.