Complex sentence: She appeared in the very early live NBC TV show "Campus Hoopla" in 1946-47, and her performances on this program are recorded on rare kinescope and also audio recordings of these tele-casts as preserved in the Library of Congress.
Split into simpler sentences: She appeared in the very early live NBC TV show "Campus Hoopla" in 1946--47. Her performances on this program are recorded on rare kinescope, and audio recordings of these telecasts are preserved in the Library of Congress.