'Tis merely a flesh wound.
Our teacher recently got this ridiculously large TV for the classroom and has been using it as much as possible. On Fridays, generally, when the teacher runs out of things to teach and gives us a few choices as to what to do, he will put on The Holy Grail. It makes everyone laugh frequently (Especially the knights who say Ni) and everyone looks forward to such days. Slightly gory, but as it is old, the effects/ blood aren't realistic at all so we are never scared. The bare backsides go down a treat with the more childish of us, but we did skip through the one about the castle full of ladies. If you vet the episodes, and talk with the children about the things happening as much as possible, it should be okay for those ten and up, depending on maturity.
The slapstick humor and general stupidness of the king and his knights (The French taunting got everyone laughing, including me) is very welcomed by those mature enough to understand that it isn't real, and is for entrainment purposes only. Very funny, with several iffy bits to skip over, with the correct vetting and regular intervals, so as to talk things through, this is the ideal family laugh, to bring everyone together.
It really depends on the person, people who don't like this do have a sense of humor, it just so happens to be different from yours. This is a reviews website, let them say what they want- it can get a bit iffy, so it is perfectly acceptable to say so, and you probably should point out a couple of the iffier bits, that's what makes a review helpful- just keep this in mind.