That was my first guess as well. By default the TV is in an eco mode and would only use around 50 watts. But as soon as you make the TV actually usable it will double in power.
OP if you want to get a worst cast scenario of the power consumption of your TV just look at the power supply. If it’s an external brick just look at the DC output from the brick and multiply the voltage by the amperage. If you’re running it off of a battery powered inverter then power factor, and efficiency of the brick come into play, but it shouldn’t be too much worse than the absolute highest the brick is rated to output.
That was my first guess as well. By default the TV is in an eco mode and would only use around 50 watts. But as soon as you make the TV actually usable it will double in power.
OP if you want to get a worst cast scenario of the power consumption of your TV just look at the power supply. If it’s an external brick just look at the DC output from the brick and multiply the voltage by the amperage. If you’re running it off of a battery powered inverter then power factor, and efficiency of the brick come into play, but it shouldn’t be too much worse than the absolute highest the brick is rated to output.