There are a number of other contenders (see https://fakehistoryhunter.wordpress.com/2019/09/11/not-the-first-interracial-kiss-on-tv/), but this does in fact predate the famous Kirk/Uhura kiss.
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RT @thisismewhatevs
The first interracial kiss on American television was between Lt. Uhura and Nurse Chapel.
https://twitter.com/thisismewhatevs/status/1350953844025548811