Mork & Mindy (1978)

S4E15 I Don't Remember Mama

Mork's tedious reports to Orson lead to a drastic decision: Orson wipes Mork's memories of his loved ones. Determined to help him remember, Mindy and Mearth pull out all the stops. After a series of heartfelt attempts, Mindy finally manages to break through the mental barrier by kissing him, reigniting the spark of recognition in Mork.