If you want to see Sailor Moon as a historical artifact —including the "Sailor Says" public service announcements at the end of each DiC episode—go with the Internet Archive. If you want crystal-clear HD, go with Hulu.
Communities like Senshi Fansubs have used the Archive to digitize over 200 rare fan-subtitled episodes from the 90s that predated official uncut releases. sailor moon season 1 internet archive
The preservation of the first season is vital because of the heavy "Americanization" it underwent. Broadcasters edited shots to match American traffic patterns and changed character names (e.g., Usagi became Serena) to make the show more "relatable" to Western kids. Perhaps most famously, the Archive preserves the history of early fansubs—projects like Senshi Fansubs If you want to see Sailor Moon as