Let's be honest here, unless you've got kids there's no real need for 5 of those channels:
Cartoon Network HD
Disney Channel HD
Disney Cinemagic HD
Disney XD HD
Nickelodeon HD
Even if you do have kids, are your children really connoisseurs when it comes to picture quality? I'm pretty sure they'd be just as happy watching the normal version of the channel. In fact if I had a child who complained their cartoon wasn't in HD I'd probably slap myself for allowing them to become a spoilt brat