Go to the YouTube section and you would find different channels in which you could listen to music, practise grammar, spelling or phonics, watch TV programmes, videos, cartoons and many more.
I recommend organising the channel by playlist, eg Nickelodeon Channel (Drake & Josh, iCarly , Henry Danger, Football Frenzy, 100 things to before High School, SpongeBob ...)
There are also good old classic episodes of Cartoon series kind of: