I suspect not many people remember medieval-themed CITV comedy drama Knight School from the late '90s.
Although it has a Wikipedia entry, there doesn't appear to be any trace of it on YouTube. As an avid CITV viewer at the time, I remember it primarily for its theme song, which began:
"In the year of our Lord 1073,
St Cuthbert built a fine academy,
Where chivalry and derring-do
Were taught if your parents had a groat or two."
St Cuthbert lived in the 7th century rather than the 11th, but of course the target audience wasn't supposed to know that yet (no disrespect intended).
It probably doesn't help that Knight School's name is very similar to that of a certain other medieval-themed CITV show - which, it's fair to say, will remain widely remembered for a while yet...