Born Betty Kay Ageloff in New York City, Aberlin had a regular role as "Lady Aberlin" on the children's television series Mister Rogers' Neighborhood. She also appeared on The Smothers Brothers Show (1975) and various TV spots. For a short period of time, using the name Betty Aberlin, she volunteered to do a late night radio on WYEP-FM in Pittsburgh. The program featuring jazz and some spoken arts/poetry. The radio station was (and still is) a non-commercial, community supported station for progressive music, arts and public affairs.
As a contributor to the literary website "Fresh Yarn," Aberlin's essay, The Blonding of America, was published in 2005. She published a collection of poems, The White Pages Poems, as a companion to A Book of Strife, in the Form of the Diary of an Old Soul, an 1880 collection of poems by George MacDonald.