Where can I watch “Gunsmoke” Season 20 Episode 21 online?

This page provides episode info and a legal-only guide. It does not host streams or downloads. Check official platforms and licensed services for availability in your region (US first).

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Watching earlier episodes in season 20 helps you follow the plot and character arcs leading into this episode.

Watch Gunsmoke Season 20 Episode 21 Online

“I Have Promises to Keep” — Watch "Gunsmoke" Season 20 Episode 21 online in HD for free. Check streaming providers, cast, and episode details.

Mar 3, 1975 Season 20 Episode 21 45 min TV-G

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Gunsmoke Season 20

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Where can I watch "I Have Promises to Keep" online?

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Season 20 Episode 21 — Aired on Mar 3, 1975 • runs about 45 minutes.

Directed by Vincent McEveety.

Written by Earl W. Wallace.

Notable cast/guest names in this episode include James Arness, Amanda Blake, Ken Curtis, Milburn Stone.

This page includes 1 official still(s) (when available) plus legal availability links.

Looking for “watch Gunsmoke Season 20 Episode 21 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Festus is caught in the middle when an Eastern preacher (David Wayne) wants to build a church for the Indians and the townspeople to share, but by all of whom that are filled with prejudice.