I get what seems like 5 minutes of actual competition followed by what seems 5-8 minutes of commercials.
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Most TV is a string of commercials interspersed with brief segments of content. The networks and their sponsors are laughing their asses off at the stupidity of the public.
I think normal is 6 to 4, meaning six minutes of content followed by four minutes of commercials.
That gives six ten-minute segments per hour, called "blocks" -- A-block, B-block, etc.
Yes, it's not always 6-4, sometimes they split those to 3-2, meaning three minutes content, two minutes of commercials.
And during very special events they may run no commercials.
Anyway, I haven't watched these Olympics, so can't say what they are doing, but it might even resemble American football games where they throw in commercials at every possible opportunity.
And, of course, the most annoying commercials, even if they are relatively short, can seem to run on & on forever.