Dec hosts the latest of the live semi-finals, with acts competing for the chance to win a cash prize and a slot at the Royal Variety Performance. Judges Simon Cowell, Alesha Dixon, David Walliams and Amanda Holden give their verdict on the evening's performances.

Britain's Got Talent Season 12 Episodes...

• s12e01 - Auditions 1
• s12e02 - Auditions 2
• s12e03 - Auditions 3
• s12e04 - Auditions 4
• s12e05 - Auditions 5
• s12e06 - Auditions 6
• s12e07 - Auditions 7
• s12e08 - Semi Final 1
• s12e09 - Semi Final 1: The Results
• s12e10 - Semi Final 2
• s12e11 - Semi Final 2: The Results
• s12e12 - Semi Final 3
• s12e13 - Semi Final 3: The Results
• s12e14 - Semi Final 4
• s12e15 - Semi Final 4: The Results
• s12e16 - Semi Final 5
• s12e17 - Semi Final 5: The Results
• s12e18 - Final

Britain's Got Talent Show Summary

Britain's Got Talent is a reality talent show hosted by Ant and Dec. Any sort of entertainment act is able to enter the competition and hopefully impress the judges and make it through to the final stages of the competition.

The series winner's prize is £100,000 and the chance to perform at the Royal Variety Show. The judges on the show are Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams.