A) if your coach doesn't have an INVERTER, then no, you will not have any 120v power to TVs, receivers, microwave, or any outlets
B) if your coach DOES have an INVERTER, it 'depends' on the purpose for the inverter and how it is WIRED within your coach. Some smaller inverters are ONLY for the residential fridge, and do not power anything else...or
C) if you have an Inverter, it 'may' support another outlet, some outlets, or all outlets, depending on how the factory wired it. Some owners find that 'some' outlets are powered, but are not necessarily OBVIOUS. It may only be one in the bedroom, or one or two in the living area, etc.
Regardless, in order for any of these outlets to be 'powered', the Inverter has to be turned ON. That's maybe a little too obvious, but many owners don't realize it, thinking that it happens automatically. You can easily leave the inverter on all the time, especially if you are traveling, or are mostly plugged into Shore Power, or running the generator. While the inverter may not seem to be needed when you have Shore or Gen power, it will still work during that time, and can give you a 'backup' power source if the Shore or Gen power fails, cuts out, or when you turn it off or unplug.
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
110,000+mi since '14 - US, Alaska, Canada (also, '14 Gulfstream Amerilite and '07 ForestRiver Rockwood) : )b