Opportunity Knocks (1956)
A radio, and later television, talent show originally hosted by Hughie Green, with a late-1980s revival hosted by Bob Monkhouse, and later by previous winner Les Dawson.
- First Air Date: 1956-06-13
- Last Air Date: 1990-06-02
- Total Seasons: 22
- Total Episodes: 507
- Episode Runtime: 30 min.
- Network: BBC One, ITV1
