I saw Holy Grail a couple times when it ran on A&E. IIRC, they sort of half muted every utterance of J.C. and totally muted "oral sex". They also inexplicably repeated the opening credits over the blank screen at the end!

I think the Pythons had this version pulled eventually. I probably saw the whole film uncensored when it aired on PBS in the late 70's.

One project I've been kicking around is preserving the Criterion Laserdisc Japanese audio track of Holy Grail. I'd like to get it translated and subtitled. Only two scenes have ever been presented with the lost in translation Japanese dialog subtitled on the DVD releases.