Content ID seems pretty robust* for non-live content. I uploaded a copy of one of the few wide-release U.S. movies in the public domain ("His Girl Friday" [0]) and was hit with a takedown notice instantaneously as the upload finished. I didn't contest it at the time, and I wonder if it's because Content ID was triggered by the Columbia Pictures fanfare/logo in the opening.

[0] https://archive.org/details/his_girl_friday

edit: By "robust", I actually mean, "a bit overly proactive", in that the system seems to be efficient in its detection, but the system's design seems unavoidably vulnerable to false positives.

> Content ID seems pretty robust* for non-live content.

It's overly aggressive and has tons of false positive.

I too was also amazed at how easy it was to find pirated TV content via Google having long given up my pirate ways.

I pay for YouTube TV and their DVR messed up and didn't record 1 episode of a TV series.

After exhausting all legal ways to acquire said content, I found numerous links on page 1 and 2 of Google, offering the content with minimal shadiness. The trick was to search for a very specific titles, such as "Shark Tank Season 1 Episode 1" or "Shark Tank S1E1" etc. This filters out all the "general" results. If 37 year old me, years detached from pirating can figure this out in 10 minutes, it's clear Google gives zero f*cks unless compelled (legally) to do so.

Edit: To clarify, the streams were not hosted on YouTube, but rather Google results led me to 3rd party streaming options. This isn't a criticism of Content ID, more Google's policy towards privacy in general.