This Is Your Life

I saw a rerun of the Charlton Heston episode sometime in the late 1970s or early 1980s, probably on one of the NY stations. In it, they showed a short clip from Heston's first film, which appeared to be a silent film (it had titles). Heston appeared to be playing an Indian, and an Indian maiden asked "would you like to adjust my garter." Switching back to the show, they showed a very embarrassed looking Heston.

IMDb shows no such film in Heston's filmography. I've always wondered if this was some stag film that he appeared in early in his career. Or perhaps it was a gag perpetrated by the folks at This is Your Life.

Do copies of this episode still exist? The host was definitely Ralph Edwards, and had to have been the 1957 episode for Heston, not one from later versions of the show.