One heavy-weight brand reinforces another.
Amber discovers Sofia's amulet is magical and takes it without permission [on Disney TVA's Sofia the First], inadvertently summoning an evil princess, Ivy, who's set on taking over Enchancia, in "The Curse of Princess Ivy," a primetime special of Disney Junior's Emmy-winning series. ... The high-stakes adventure features a special appearance by Rapunzel, voiced by Mandy Moore, who reprises her role from Disney's "Tangled." ...
When you're the Berkshire Hathaway of entertainment conglomerates, you want to make sure that awareness of older Disney characters remains embedded in the frontal lobes your target demographic.
And what better way to do it than placing the title character from a five-year-old theatrical feature into the all-time record holder for the top two cable TV telecasts for Kids 2-5? And the #1 series in Girls 2-5 and the #1 preschool series in Total Viewers and Women 18-49?
Rapunzel merchandise won't fly off the shelves if small girls don't know Rapunzel exists. (The Mouse never misses a trick.)