A millinewton.
Not a gram or kilogram since they are units for measuring mass which is not the same as weight.
Units of weight or mass for a book would be in pounds and ounces or grams and kilograms.
Pound weight.
Grams
ounces
Newtons.
Units of weight or mass for a book would be in pounds and ounces or grams and kilograms.
ton
millinewton.
Pound weight.
In the US we would use pounds.
The metric (SI) unit for weight is the newton, since weight is a force. When people talk about "weight", they sometimes actually mean "mass". The unit for mass is the kilogram.
Grams
ounces
Newtons.
pounds
The weight of a TV is in the same general ballpark as that of a human. So the appropriate unit would be the unit you use to weigh yourself. So that would be kg or lbs depending on where you are.
I would probably use kilograms.