List of the Power Consumption of Typical Household Appliances

Turn that TV off if you're not watching it! It's wasting electrically!

https://www.daftlogic.com/information-appliance-power-consumption.htm

How much electricity is it really wasting?, and would it not be better to switch off the 4 lights in the room?

The best way to compare the cost of running different appliances is to look at their power consumption, which is measure of how much power they use in Watts. The following list points out typical values for the wattage of some devices you would find in your home so that you can compare them.