RV stands for 'Recreational Vehicle'.
Revolver maybe
It means the engine is in the rear of the bus or RV.
If you mean a built-in system for your RV, or something attached to the top of your RV, this site may be useful to you: www.amsolar.com/ If you mean a small portable generator that is not attached to your RV, and you want to use it to power appliances in your RV, that option is not as easy. Generators tend to be heavy units and take up a lot of space.
It means Rateable Value
An RV.
If you mean RB, then it is Regulus Black.
A bunch of pictures.
gallery
That depends on what you mean by "Gallery". You can find all the mission photos at: http://www.hq.nasa.gov/alsj/frame.html
It means the car was damaged and the costs to repair was greater than 75% of the RV's actual cash value.
Night Gallery - 1969 I Did Not Mean to Slay Thee was released on: USA: 11 November 1972