Why did Fox news not show any of the parts of the SNL Palin Clinton sketch that mocked Palin's incompetency?

You will never see anything critical of the Republican party on Fox. Its owned by Mr. Regans' spokesman - and is so totally republican its not funny. They have gone as far as claiming that a republican senator that got into trouble for being corrupt - was a democrat. There are many other examples - google the subject for some interesting ones.