Not to hyjack the thread, but it is a very good idea to have electronics plugged into surge surpressors inside the coach as well. When we had our power cord fry, the TV was unfortunately only plugged into a multi-plug strip, not a surge protected strip. It let out the factory smoke. Our other electronic devices, including my laptop and other work-related devices, were all plugged into surge protected outlets. Some of the surge protectors fried as well, but no damage to the components.
For my "office" I have a very nice battery backup and line conditioning surge protector/UPS. It appeared to work correctly when the power went off, switching over to battery. Well, a number of days later when we were confident the rig was OK to use again, I tried plugging everything in as before to the UPS. The UPS started smelling "funny," like burned toast. I guess it was actually TOAST. I replaced it.