Opportunity Knocks - Season 20 Episode 1 : Episode 1
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 : Jun 13, 1956
Last Air Date : Jun 02, 1990
Runtime : 30 min.
Genre : Family
Stars : Hughie Green, Bob Monkhouse, Les Dawson
Quality : 
- Eps. 1 : Episode 11988-03-05
- Eps. 2 : Episode 21988-03-12
- Eps. 3 : Episode 31988-03-19
- Eps. 4 : Episode 41988-03-26
- Eps. 5 : Episode 51988-04-02
- Eps. 6 : Episode 61988-04-09
- Eps. 7 : Episode 71988-04-16
- Eps. 8 : Episode 81988-04-23
- Eps. 9 : Episode 91988-05-07
- Eps. 10 : Episode 101988-05-14
- Eps. 11 : Episode 111988-05-21
- Eps. 12 : Episode 121988-05-28
- Eps. 13 : Final1988-06-04
