A programme note can help you remember why a title interested you or where a shared session stopped. It does not need to become a complete record of everything the household watches.
Choose a few useful fields and leave out account credentials, billing details and another person’s private preferences unless they choose to share them.

Decide what the note is for
A shortlist note may need only the title and a reason to consider it. A progress note may need the season, episode and a spoiler-free reminder. A shared-session note may need an agreed date or essential language requirement.
Do not combine these into a large form simply because more fields are possible. A note is useful when it answers the next practical question quickly.
Use a minimal example
An invented entry could read: “The documentary we discussed; one episode left; watch together on a free evening; confirm captions.” It communicates purpose without a password, full account address or private viewing-history export.
If an app already provides a supported watchlist or progress feature, decide whether a separate note adds anything. Netflix My List and Apple’s Watchlist are examples of native tools, but no universal synchronization across unrelated services is assumed.
Keep an approximate progress marker separate from a claim about an app’s exact playback position. If the app and note disagree, inspect the programme carefully before skipping ahead and spoiling material.
Remove what no longer helps
Delete stale options and update the progress when it matters. There is no need to preserve every abandoned title or use the number of entries as a quality score.
Keep transaction records separately in the account holder’s private system. A programme note is not proof of purchase, current inclusion or permission to share an account. Recheck actual access when a planned session or payment depends on it.
Useful answers
Should the programme note contain my login details?
No. Keep credentials and billing records separately and securely.
Must I record every programme I start?
No. Keep only information that helps a real preference or progress task.