Last week in the world of late night featured Larry David discussing parenthood, John Oliver breaking down Medicare Advantage, and more.

Even though John Oliver thinks a series may not be "good for humanity," he called the reality show "one of the funniest" ...

John Oliver got real-life couple Megan Mullally and Nick Offerman to help him create a new ad this week for Medicare ...

There's a bonus Easter egg for anyone who calls the number on their screen (after being explicitly warned against it).