Apparently a Japanese TV program made these cab view videos when the 100’s were new.
The Tokaido Shinkansen:
And the Sanyo Shinkansen:
These videos are interesting because you can see the line before some the improvements were made, such as the tunnel noise reduction shields and the constant tension catenary. You can also see the colorful trains on the Yamanote and Kehin Tohoku Lines as the train runs through Tokyo at the beginning of the run. In all these sped up videos are an interesting look at the Shinkansen