Skehan began his television career as a reporter on Broadsheet, Telefís Éireann's first current affairs series. He went on to become a familiar face and voice on later programmes such as Discovery.
Later he moved to radio and, in 1980, he won a Jacob's Award for his radio archive series Play It Again, John. In the late 1980s and 90s he presented a weekly series on RTÉ Radio 1 entitled Words and Music, in which he interviewed notable people and played a selection of their favourite records.
Towards the end of his life, Skehan returned to television as a snooker commentator.