Les Rendez-Vous Du Dimanche (1978.12.31)
This is Olivia's second appearance on this show, and this Hopelessly devoted to you performance is the last to be aired of those she taped in late November that year. She's wearing the same red outfit as on her previous appearance.
French comedian Raymond Devos was the main guest on this episode, and we can see him watching Olivia's pre-recorded performance as the song goes on, which can be a bit distracting.