Gilligan's Island (1964)

S02E18 The Postman Cometh

The Castaways tune into the radio and discover that Mary Ann's boyfriend in Kansas is tying the knot. Unbeknownst to her, Mary Ann catches wind of their conversation and, in a panic, thinks she has been poisoned by the mushrooms she consumed, believing she only has a limited time to live. This leads to a humorous dream sequence where the Professor adopts a Cary Grant-like demeanor, adding to the comedy of the situation.