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Amazon Prime Video will start showing ads on January 29th unless you pay extra for ad-free
(www.theverge.com)
This is a most excellent place for technology news and articles.
I was watching Yellowstone on Prime back in 2021, before they moved it to a premium tier, and the audio was always out of sync when using Prime Video, so I had to adjust the audio sync latency, and remember to switch it back when watching other content. This was on an Nvidia Shield Pro, too, so not some scrappy TV vendor's implementation of the app on some underpowered SoC.
After a while, I gave up and just watched it on my Plex server instead. I could also use the Watch Together feature to watch it synchronously with friends, a feature not supported by Prime Video.
In my case, the piracy (if you call it that, when I was at the time a Prime member) was absolutely a UX issue, not a price issue.