https://www.ster.nl/media/2ssmp5p5/ster-jaarverslag_2019.pdf
https://www.ster.nl/media/2ssmp5p5/ster-jaarverslag_2019.pdf
[1] https://www.ster.nl/media/rrifn3t0/npo-1-juni-2020-gewijzigd...
I would expect a lot more to be honest! (I know it changes and I bet those values around some specific events to be bigger, but still)
[in Dutch] https://www.ster.nl/hoe-werkt-het/tv-reclame-bij-ster/
Interesting document! There's a lot of information in here that I never really realized.
Looks like on any given day, you have an opportunity to be exposed to about 3 hours worth of commercials.
Further, total revenue from ads tops around 65,000 euros on a week day (on Tuesdays, it seems), much less on weekend days as more long-form programs are scheduled on those days. (The NPO does not interrupt shows for "ad-breaks"). On the other hand, there are some sketchy schedules, like the 6 PM news is a 15 minute thing sandwiched between two 8-minute ad blocks, and the "sports news" is a 5 minute update sandwiched between two 5-minute ad blocks.
These are the stats for the NPO 1 channel, which is the flagship channel for the NPO and bound to bring in the most ad revenue. If all days were to bring in this much revenue, it would mean a revenue of ~24 million euros a year, meaning a little bit over 8 NPO 1's would be necessary to bring in the revenue the STER claims to bring each year (which is 200 million euros).
I must be missing something..
Update: Ah, the stated price is for 30 seconds of ad time, rather than the price for the full block.
Update2: Recalculating, the daily top comes down to around 675,000 euros, meaning around 246 million euros a year.