Jim's characters talking about each other is always good.

Also, something I realized on watching Return of the Jedi again (in Concert!*): The biggest weakness of the Emperor wasn't his arrogance, but being incapable of shutting the hell up for five damn minutes!
Seriously, there are several moments where the only reason Luke snaps out of falling only because Palpatine can't keep his trap shut.

And I never realized how funny the whole Ewok battle actually is.
Like, sure, they are ridiculously effective, considering the difference in tech levels, but that's not what I mean.
Even if it is amusing...
But the strategies that don't work? It might be mean, but a fluffy little teddy-bear ineffectually hammering on the foot of a Chicken-Walker with a rock is hillarious.
Mind you, watching with an larger audience probably helped, giggles are infectious.

*Minor drawback was the orchestra playing over the dialouges sometimes, but most people there (and here) probably know those by heart anyway.