partner has never seen VBros. What is the SINGLE best first episode to show them?

I love the show BUT, I think I appreciate the show much more in later seasons--when the animation quality is higher, the jokes are classier (early seasons are very... trashy Adult Swim imo), and had more time to build on previous characters and references. But if I show them a later season episode they're going to be missing a ton of context.

I'm sure many of you have had the same conundrum. What show isn't too early or too late in the series, is amazing/funny as a standalone without needing tons of explanation, but still shows off the premise of the entire series?

edit: it's cool to see so many of the same suggestions. I wouldn't have thought of Tag Sale but I think I'm going with it!