Channel Four are hugely inconsistent with their Simpsons tampering. A few weeks ago, in the episode where Lisa started an independent newsletter, Willie's utterance of the phrase "I've been reviewing the new tractors - they're all shite!"* was left in (at least on Channel 4+1) on the evening broadcast. Meanwhile, as noted, lots of relatively harmless parts were cut out.
I don't think i've ever seen that.