On Tue, 27 Dec 2016 06:40:07 -0800 (PST), trader_4
wrote:

On Monday, December 26, 2016 at 2:58:46 PM UTC-5, wrote:
OK I will confuse this topic with facts.
I hooked up my clamp to a Samsung 50" TV with a sound bar. The audio
amp is disabled and it just feeds optical out to the bar that is
separately powered. There is a USB connected 3.5" drive that powers up
with the TV.
With the TV off it is bouncing between 10ma and 20 ma which I assume
is the CPU polling the network occasionally.
Turned on, it really does not make a whole lot of difference whether
you are watching antenna, local disk drive on the USB or streaming off
the internet. it is mid 600s ma
Off 10-20ma 12-24w
On watching antenna or local drive 610-630ma 73-76w
On watching a stream 650-670ma 78-80w
It bounces around a bit both ways so I assume caching or buffering is
the issue.
All in all these things are pretty efficient.
As a sanity check my 20" Sylvania CRT TV uses about the same with
power off (standby) and 28 watts on for about 1/6th the picture area.

So, I think you're saying that I was right? That a smart TV uses about
the same power as a dumb, similar TV?

I compared it to a 20" CRT
I just compared it to a dumb LED TV.
The one I have is bigger than the 50 and a different brand so it might
not be a fair comparison.
A Seiki 55" dumb LED draws 0-10 ma in standby (about half of the CRT
and the Smart TV) and 1.05a on.
Standby is less, on is quite a bit more.
I am also surprised at how much more it draws on for such a little
increase in size. I guess Samsung knows more about efficiency or maybe
the brightness is just set higher in the 55. I am running the audio
amp on that one and that could be some of the difference too.
It is clear that if we really want better numbers on the low end I
need to use a better clamp. but this is an idea of what we are talking
about.