1955 two versions recorded for the film of the same name, but never used. One of these was released on the 2004 BMG UK CD Serenade/A Cavalcade of Show Tunes. The unreleased take is better in some respects (though the ending is superior on the released version).
Serenade
(from The Student Prince) (Romberg-Donnelly) (partially updated lyrics by P.F. Webster on 1952 MGM Version)
1946 live radio broadcast on Great Moments in Music
1954 Shower of Stars (CBS TV special): two renditions: an afternoon rehearsal (available on the 2021 Sepia Records CD The Immortal Voice of Mario Lanza: A Centennial Celebration) and a live performance in the evening (see our Multimedia section to watch the latter)
1959 RCA: The Vagabond King (with soprano Judith Raskin)
Someday I’ll Find You
(from Private Lives) (Coward)
1952 two (released) versions for Coca-Cola Radio Show; the rendition first released on the 1993 CD Don't Forget Me is marginally superior