S1E1 - Episode 1
Gareth Malone presents the search for the nation's best amateur a cappella group. Gareth mentors the first four groups before they face a live audience and some a cappella experts.
Sept. 22, 2015, midnight
S1E2 - Episode 2
Gareth Malone hosts the a cappella singing contest. Gareth mentors some Salford students, a Midlands barbershop outfit, a Glasgow University choir and a Birmingham six-piece.
Sept. 29, 2015, midnight
S1E3 - Episode 3
Gareth Malone hosts the a cappella singing contest. Gareth brings the six surviving groups together for the first time, to contend with intensive mentoring at the Performance Hub.
Oct. 6, 2015, midnight
S1E4 - Episode 4
Gareth Malone hosts the a cappella singing contest. Gareth concludes his intensive training with more expert help and a new focus on performance technique.
Oct. 13, 2015, midnight
S1E5 - Episode 5
Gareth Malone hosts the a cappella singing contest. The groups must combine killer vocals and choreography to create a video with the potential to become an internet hit.
Oct. 20, 2015, midnight
S1E6 - Episode 6
Gareth Malone presents the final of the search for the nation's best amateur a cappella group. There is one more performance to go, but their last challenge has a fiendish twist.
Oct. 27, 2015, midnight