Why would she know this?

So I'm cleaning (the house since I didn't this weekend) which means that the girls get a mini-tv bonanza.

Char just picked Batman (old school Adam West), and when the DVRed show ended, she requested another one. All of a sudden, iCarly was on the tv, and Charlotte stated that she'd like "This! I want to watch this! I love iCarly!" which I believe is about like a 10 year old who has a webshow.

WHy is Charlotte aware of this show and how is she suddenly into it? I feel like I never knew my kid at all.