I suspect that the censors kept close track of the blood spilled in these episodes. I can see it now, over and over, in shows featuring blood: "Caution on showing of blood--these episodes are being watched by many children and we don't want to cause nightmares."
SPOILER. . .
The last time Angelique bites Barnabas (he was supposed to die and be resurrected as her vampire companion forever), her lips have blood on them, the first time I remember seeing a vampire thusly. Barnabas, after his first blood-sucking episode, had blood running down the corners of his mouth and on his shirt front (which is how poor Sarah saw him in the tomb), but actually seeing Barnabas' blood staining Ang's lips was pretty erotic stuff, IMHO, and the first time I recall seeing blood on anyone's lips.
Love, Robin