Last Week Tonight with John Oliver
Episode 21
TV Flash files “Episode 21” as a desk essential hour — Last Week Tonight with John Oliver (2014–present) on HBO, season 13, episode 21, aired 2026-08-16, 30 min.
From the desk
How this hour is filed
This leaf is S13E21: listed hour 371 of 371 in the Last Week Tonight with John Oliver guide, last listed hour of season 13. It aired 2026-08-16 (30 min). The listed hour before it is “Department of Justice” (S13E20). No later hour is listed in this guide.
Essential hour: “Episode 21”. The latest Sunday file on the calendar — explainer satire still the desk, petitions still the aftertaste, not a retired bit.

Viewer FAQ
Where does Episode 21 sit in the Last Week Tonight with John Oliver guide?
S13E21 is listed hour 371 of 371 — last listed hour of season 13, season 13 episode 21.
When did Last Week Tonight with John Oliver S13E21 air?
Episode 21 aired 2026-08-16 and is listed at 30 minutes.
Do I need to watch every week in order?
Each episode is a topical deep dive, not a serial plot. Jump at a subject you care about; net-neutrality-era segments are the origin myth of the civic-homework clip.
In the series
Why this series still plays
John Oliver turned late-night into a research department with punchlines: twenty-minute deep dives on net neutrality, prisons, and whatever lobbyists hoped you would never google. Civic homework disguised as comedy — explainer satire that actually moved petitions, and a host who treats footnotes like setups.
Sunday night, and the group chat is doing homework. After *The Daily Show*, John Oliver's HBO late-night series debuted April 2014 with Tim Carvell and James Taylor in the engine room: twenty-minute deep dives on net neutrality, prisons, and whatever lobbyists hoped you would never google. Segments sparked real petitions and news cycles. Multiple Emmys for variety talk. Footnotes as setups. (Spoiler-free: the joke comes with a syllabus.) Lana can have the tuxedo. **The ship is the explainer, and the replies are…
Open the Last Week Tonight with John Oliver package · Season 13 hub
Filed against
- John Oliver as Host
John Oliver’s correspondent weather on The Daily Show with Jon Stewart made a fake newscast feel like a civic classroom, then Last Week Tonight turned the same research into twenty-minute deep dives — 2000s catalog Stewart era, 2010s…