Based on your request, you are looking for a solid guide on how to watch the original 1971 Kamen Rider series, specifically via the Internet Archive. Here is a guide to finding, navigating, and watching the series on the Archive. 1. The Resource: Toei's Official Channel The best way to watch the 1971 series on the Internet Archive is through the Toei Tokusatsu World Archive . In 2020, Toei (the production company) launched an official YouTube channel and uploaded hundreds of episodes for free. These were subsequently mirrored/archived on the Internet Archive. This ensures you are watching high-quality, official releases rather than shaky VHS rips (though official subs can sometimes be hit-or-miss). Search Terms for the Archive:

"Kamen Rider 1971 Toei" "仮面ライダー 1971" (Using the Japanese title often yields better results) "Toei Tokusatsu World Kamen Rider"

2. Viewing Order & Structure The original series (1971) is often referred to as Kamen Rider (Skyrider) in retrospect, but originally it was just Kamen Rider . There are 98 episodes . The Two "Eras" of the Show: Because the actor (Hiroshi Fujioka) was injured in a stunt, the show has a distinct breaking point. If you are binge-watching, you will notice a shift:

Episodes 1–13 (The Original Rider 1):

Features Takeshi Hongo (Actor Hiroshi Fujioka). The tone is darker and more horror-focused. The costume is a duller green/grey with larger eyes.

Episodes 14–98 (The New Rider 1 & Rider 2):

Hayato Ichimonji (Actor Takeshi Sasaki) becomes the main lead for a while. The tone becomes slightly more "Shonen" (action/adventure) and less horror. Rider 1’s costume changes to the bright silver/green look that became the standard. Eventually, both Riders team up.

3. The "Subtitles" Warning If you are watching the Toei uploads on the Internet Archive, they usually come with English subtitles . However, there is a catch:

The "Fast" Subs: Toei’s official subs are notorious for being timed for speed rather than precision. They are accurate enough to follow the plot, but don't be surprised if grammar is slightly off or subtitles appear/disappear very quickly. Alternatives: If you find the official subs unwatchable, fansub groups (like "Over-Time" or "EarthlySubs") have done the series, but those are harder to find on the Archive and usually require torrenting or different streaming sites.

4. The Movies (Watch Order) There are two "movies" related to this era often found in the Archive.

Kamen Rider vs. Shocker (1972):

This is a theatrical edit of Episodes 13 and 14. It is often confused as a "new" story, but it is mostly a recap with some new footage. You can skip this if you watch the TV episodes.