This is a list of French television related events from 1978.

• 26 March – Joël Prévost is selected to represent France at the 1978 Eurovision Song Contest with his song "Il y aura toujours des violons". He is selected to be the twenty-second French Eurovision entry during a national final.
• 22 April – The 23rd Eurovision Song Contest is held at the Palais des Congrès in Paris. Israel wins the contest with the song "A-Ba-Ni-Bi", performed by Izhar Cohen and the Alphabeta.

• 4 January – 1, rue Sésame (1978–1982)

La vérité est au fond de la marmite

• Le Jour du Seigneur (1949–present)

• Présence protestante (1957–)

• Les Dossiers de l'écran (1967–1991)
• Monsieur Cinéma (1967–1980)
• Les Animaux du monde (1969–1990)
• Alain Decaux raconte (1969–1987)
• Télé-Philatélie

• Aujourd'hui Madame (1970–1982)
• 30 millions d'amis (1976–2016)
• Les Jeux de 20 Heures (1976–1987)

• La Piste aux étoiles (1956–1978)
• La Tête et les Jambes (1960–1978)

• 22 July – Louise Ekland, British-born TV presenter

• 1978 in France
• List of French films of 1978