06/18/2014 09:22 am ET Updated Jun 18, 2014

Carol Burnett Still Delivers Letters And Laughs

Kris Connor via Getty Images

Carol Burnett's latest guest role lets her advocate for what may be a casualty of the modern age: letter writing.

The beloved comedian and actress, who appears Sunday in the first-season finale of Hallmark Channel's Signed, Sealed, Delivered (8 ET/PT), likes the concept of four Denver postal detectives who search for the intended recipients of undeliverable mail. She plays the grandmother of one, Norman (Geoff Gustafson).

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