A:AnswerIt is a little difficult, but slide the back down in the direction of the arrow and it will eventually slide off so you can access the batteries.
A:AnswerThe usual answer to this would be that having the center of the screen as close to level as possible with how you will be viewing it is ideal (for example, if you will view the TV sitting down, then something like 4' above the floor to the center of the screen. However, sometimes this is not possible...
