So you used FUD to convince him to waste electricity.
The MTBF of the switch was probably 30k cycles.
The MTBF of the switch was probably 30k cycles.
30k cycles / 365 days / ~4 cycles a day (morning news, evening) is ~ 20 years of clicking.
Let's say TV is in standby 20h per day. So ~ 146 000h * 0.3W will be ~ 44 000Wh or 44kWh.
44kWh * £0.16 or so equals to ~£10.