I agree with Emru. If I had kids and they made a disaster like this, I would've taken a picture too. It's so ridiculous that there's no way you can actually get awfully angry at this. Nearly everything I can see there you could get the paint off of without too much trouble - the TV is not trashed; it still operates with a bit of paint thinner to get the latex off the screen and the sofa/floor can be cleaned (well, the sofa may require one new cushion.)

It could've been worse. I would have just shook my head, taken blame for the paint, and promptly transported both kids to the shower, do not pass Go, do not collect $200. There's nothing you can do about it now.