"Roland Perry" wrote in message
...
In message , at 06:38:35 on Mon, 9 Mar
2015, john james remarked:
And plenty of places won't have just one TV being watched too.

Then you'll have two channels to pick out of the total household
consumption - no different to a radio receiver picking out one signal
from hundreds of others.

Very different to a radio receiver because there is no turning mechanism.

The tuning(sic) mechanism is digital signal processing, which produces the
same effect as analogue signal processing with inductor/capacitor
circuits/PLLs etc.

Nothing even remotely like the same effect.

With two TVs running at the same time, its never going
to be possible to work out from the total house power
consumption what is on the screen of either TV program
wise because it is never going to be possible to work out
what the backlight power of a particular TV currently is.

With some other power consumers like say the toilet light
it is certainly possible to work out that it is the toilet light
from the times that it comes on and how long it stays on
for compared with an internal cupboard light or say a
some other room light.