Here’s my two-cents, for toddler shows anyway:
The Best:
Bear in the Big Blue House
Expert Muppetry and top-notch songs. Whoever’s inside the Bear costume makes Big Bird look like a two-left-footed doofus.
Max and Ruby
Wonderful drawings (based on the Rosemary Wells books) and a sparse but elegant animation style detract from the adult’s nagging question: where are the parents?
Jojo’s Circus
Old-school claymation, first-rate music, an emphasis on physical activity and the most kickass kiddie show theme song since The Banana Splits.
Charlie and Lola
Recent UK import with a unique collage-esque animation style and good humour.
The Wiggles
Snark if you want but if you’ve spent any time at all in the unpredictable jungle that is kids musical TV then you know damn well that it doesn’t get much better–scratch that–doesn’t get much less annoying than the Wiggles.
*
The Worst:*
The Doodlebops
Ask anyone who’s seen it.
Tiny Planets
A couple of spazzy aliens fly through space on their couch to different planets (the planet of Self???) to solve simplistic problems and annoy the hell out of parents across the galaxies.
Oobi
Disembodied hands! Bug eyes! Grampoo! Poo?
Toddworld
Admirable message of tolerance is undone by garish drawings and clunky animation.
Hi-5
Face it, dad’s more interested in this show than Junior is, nudge, nudge.