The judges for heat three were Arthur Askey, Tony Hatch and George Elrick.
- Brian Beck (comedian)
- Mike Gancia (comedy magician)
- Zenith Hot Stompers (jazz band)
- The Summer Bees (6 piece Tijuana group)
- Susan Morris (opera singer)
- Norman Skinner (male vocalist)
- Wendy Jayne and Allan Grainger (vocal duo)
The winner of the show, and booking a place in the All Winner Final on 9 November 1974, was opera singer Susan Morris.