There have been problems in recruitment, particularly after Highland Council failed in seven attempts to appoint a permanent head for Inverness Gaelic Primary School.
The last advert had not even demanded fluency in Gaelic, but when the acting head applied, parents' representatives opposed her appointment because she could not speak Gaelic.
The statutory language development body Bòrd na Gàidhlig had now commissioned four adverts as part of a publicity campaign. Each advert features the viewpoint of school pupils and is set in a variety of classroom situations.
Head of education and learning Mary MacMillan said: "Television advertising is a first for Bòrd na Gàidhlig and indeed for Gaelic-medium education."