public stations depend on donations to fund their programming. the programs that inspire the most donations get priority in their lineup. that seems logical and fair to me. they get the money they need and viewers get the programs which appear to appeal to the widest spectrum of the viewing population.
try contacting the station to see whether funding had anything to do with the change. if they had to drop it for lack of money, you might consider coordinating a fundraising effort to help them get it back on the air.