[lotsofpulp]

Is that not what across the board means? There are 3 news channels, all of them have to be added together for an across the board measurement.

[DiggyJohnson]

Not at all - in my opinion.

“Across the board” means something closer “true in every case”. Though as I type this, I realize some people my think of it as “in total.”

[bee_rider]

Note that "across the board" does not actually appear in the article.

[DiggyJohnson]

N.b. indeed, cheers

[lotsofpulp]

You are right, that is what across the board means. I was mixing up what the person who replied to me wrote with what I wrote. Oops!

[carbadtraingood]

"Across the board" means "in every instance" not "in aggregate", at least in my experience.

[lotsofpulp]

Yes, that is correct. I was misremembering what I read. It was

“across the three major cable news networks”

Which I paraphrased as

“Across all the channels”

Which the person replying to me changed to

“Across the board”.