What radio soap opera used the theme song from Tchaikovsky symphony?

The radio soap Opera that famously used the theme song from Tchaikovsky's "Swan Lake" was "The Guiding Light." This iconic series, which began as a radio program in 1937 before transitioning to television, incorporated Classical Music to enhance its dramatic storytelling. The use of Tchaikovsky's music contributed to the show's emotional depth and became closely associated with its memorable moments.