Some of the way kids tv characters speak is appalling. I'm thinking Bing and characters in Kate and mim mim (which we never watch as it's just too irritating for me) off the top of my head.
I wonder if this can have a negative impact on kids learning to speak or AIBU and it's only an issue if bad tv is the only speech a child hears (which obviously doesn't happen).
Just a general musing really on how people feel about bad grammar in kids tv! I think I just find it annoying more than worrying.