Educational TV...is it working?

The following is a conversation I had with my 7 year old daughter and 9 year old son.

him: "Are we watching a movie tonight."

me: "Probably not."

her: "You mean we didn't watch TV all day today...for NOTHING?"

me: "Not for nothing. It's good for you to skip TV for a day or 2."

him: "You mean it's not good for us but you let us watch it everyday?"

me: "It's ok to watch a little. Sometimes it's fun to do something just for fun. But too much TV is not good for you."

him: "But what if it's educable? Then it's ok, right?"

me:"...???.."

him: "Right? If it's educable, it's ok."

me: "um...no...apparently not. And I believe the word you're looking for is 'educational', not 'educable'. Educable is not a word."**

him: "Oh. I meant educational."

**I have since learned that "educable" is a word. It means "able to be educated." A brilliant wordsmith pointed this out me. He could've posted a comment telling me so, but he chose to tell me privately, because he's great.