This is kind of your area...You have to have double blue parents, and a spouse with double blue parents, to get 100% blue-eyed kids, right?
"You have to have double blue parents, and a spouse with double blue parents, to get 100% blue-eyed kids, right?"
No, brown-eyed parents with brown-eyed grandparents can have 100% blue-eyed kids --- blue being recessive.
Note, this is POSSIBLE. Just not likely:
Bb + Bb =
BB
Bb
bB
bb
1/4 chance of blue eyes.