How long was "The Adventures of Ozzie and Harriet" (ABC) on radio before it started on TV?

“The Adventures of Ozzie and Harriet” was on the radio eight years from 1944-52 before it started on TV.

It on both TV and radio for two years-1952-54.

The TV version continued until September 1966.

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How long was “The Adventures of Ozzie and Harriet” (ABC) on radio before it started on TV?