What makes a concert broadcast successful?

As music lovers, there can often be a collective feeling of amazement after a thrilling concert, both in the auditorium and as a radio broadcast. But what gives us this collective feeling of a concert’s success? What is this ‘wow’ factor, and can it be measured? Is it the programming, acoustics, presentation or a successful media campaign, and why is sometimes the opposite true? For this session, contributors from sound engineers to concert presenters gather to discuss these questions.