a) the contrast between the seriousness of 2,3, and 5 versus the frivoloty of 1 and 4 (particularly as the skipped episode was for a rerun)
b) I am now curious as to whether the BBC keep track of how many complaints they get on either side of Israel/Palestine bias and then tailor the next news segment to try and even things up a bit...
Image from here. Where you can also see people complaining about "beastiality" in Doctor Who. And the word "Dunce" in the Great British Bake Off.
Original post on Dreamwidth - there are comments there.