Honestly, near the end of the first season. It’s a lot to ask new viewers, and I understand why the audience has been so thin because of it. My wife NEVER gives TV shows more than 3-4 episodes, but COVID didn’t give us many options. We gave up after 5 episodes, then one night we picked it back up and just plowed through. She loved it, we binged 3 seasons that weekend, and insisted we pay for the final season when we got to the end.
They were also together in a number of comedies that included Best in Show and A Mighty Wind
I actually thought that the farewell documentary had a stronger emotional impact than the series finale did.
It did. It was difficult to watch, especially when Noah read the letter.