Casper, the Friendly Ghost used to get a lot of airplay back in the day, right along with some of his contemporaries, such as Popeye, Woody Woodpecker, and Tom & Jerry. Unfortunately, these days, cable networks don't seem to be too interested. Their loss.
Now, though, would be the right time to bring Casper back. One way is to present one of his theatrical shorts from the 50's, particularly, 1953's "Boo Moon".