How far back does Filmot's collection go, and how complete is coverage of deleted or unlisted videos?

Filmot began collecting YouTube information around September 2018. That is a collection start date, not an upload-date cutoff: older videos may be indexed if they were accessible when Filmot encountered them.

Coverage is incomplete. Filmot generally cannot supply details for a video that became unavailable before it first collected those details. Subtitle indexing is selective; metadata search has no minimum view count but can only show records Filmot has discovered.

Use Channel Search to inspect known videos from a channel. A video's Filmot page shows available stored metadata and subtitles, but Filmot does not store a video or audio copy.