JPW - I guess I was implying a boondocking situation, where you wanted to use the Apple TV. You'd need an inverter, like what Ned uses. It's a bummer that Apple chose to internalize their power supply in this case. Although, for the non-RVer - it's a cleaner design. My small TV that I bought came with a wall wort and (serendipitously) runs off of 12V. So I just chucked the wall wort. If I want to run the ATV while boondocking, I'll need an inverter. I was concerned that the cheaper inverters would wreak havoc on the sensitive electronics, that's all.
It sounds like you are only using this setup when you have shore power. The monster powerbar should protect it fine, in that situation.
Mylo