Opportunity Knocks13 June 1956 - 12 September 1956Season 1 · 1956 · 14 episodesAssociated Rediffusion Hosted by Hughie Green until 1978MoreEpisodes1Episode 12Episode 23Episode 34Episode 45Episode 56Episode 67Episode 78Episode 89Episode 910Episode 1011Episode 1112Episode 1213Episode 1314Episode 14Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9Season 10Season 11Season 12Season 13Season 14Season 15Season 16Season 17Season 18Season 19Season 20Season 21Season 22
