Uploader of these is, I assume, the Sagamihara municipal government. This is their 'town info' kind of thing from April 15, 1990. Coverage of the then-new Hashimoto Station starts at 2:33. Waiting rooms were non-smoking from the beginning, seems quite forward-thinking to me.
In another episode of this, from November 1984, locations along the then-JNR, then-unelectrified Sagami Line are featured. At the time, the line had KIHA 35s, tablet safeworking, and apparently some manual and spring switches.