I have (2) Yamaha 2000is and an inverter. Here is how I use mine:
For TV I set up an inverter under the hood of my truck. The inverter runs off of the aux. battery. I then ran wiring from the inverter to the box of my truck where I have an outlet. The inverter is controlled with a remote control so I don't have to go out at night and shut the inverter off. I split the outlet for the TV so the bottom plug in is still Trailer 110 and the top outlet is connected to wiring that connects to the plug in the back of my truck. I can switch as needed depending on the power situation. This allows use to watch TV after generator hours.
As far as the generators I use 1 generator for most needs short of running the AC. I have hour meters on the generators to balance thier use.
One tip is to install a "hard start" kit in your AC unit if you do not have one already. It makes the AC start up a lot easier on the generators and I have been able to leave my generators on econ mode where I could not do that without the hard start kit.