Most of us know because we remember the commercial. We don't need jesus, the writers for folgers need jesus.
I'm at like b2 or c1 in spanish and I can almost never understand spoken portuguese. Written portuguese (or french or italian) I can read mostly ok but spoken portuguese sounds like someone speaking spanish with mashed potatoes in their mouth.
Gotta love the first line of the wikipedia article on this commercial. Yes, there is a wikipedia article on this commercial. "Coming Home" (commonly referred to by unofficial titles such as the Folgers Incest AdWiki here
By watching the films in this order, you not only avoid spoilers entirely, but also maintain the original narrative's focus. Essentially you follow Luke on his coming of age story up until he loses his hand to Vader on Cloud City and finds out that he is his father, before going on an extended two-film flashback where we see how Anakin became Vader and conceived Luke, before then snapping back to the present for the finale.
Keiko would show them Machete order (4,5,2,3,6) for sure. No need to talk about a background character with a few lines.
Plus for those few occasions when you need to search Wikipedia it’s like a swipe and a tap to re-enable Wi-Fi.
Most of us know because we remember the commercial. We don't need jesus, the writers for folgers need jesus.