TV is minimum 1/3 time advertising, 2/3 content, but that is ignoring shilling and product placement in the content.
I do not spend anywhere near 1/3rd of my time on the internet figuring out what is and is not advertising. Mostly by avoiding content with images and video.
I'd say 1/4 advertising, 2/3 content and 1/12 opening and closing credits but I take your point.
I don't know if you've tried to search for anything on the internet lately, but I've found that any time I'm trying to be an active rather than a passive consumer of the internet, it's getting damned hard to avoid things that are 'SEO optimized' and relevant content pessimized.
I do not spend anywhere near 1/3rd of my time on the internet figuring out what is and is not advertising. Mostly by avoiding content with images and video.