What makes 'Who Wants To be a Millionaire' a hit?

What makes 'Who Wants To be a Millionaire' a hit?

Manylion Llyfryddiaeth
Cyhoeddwyd yn:Philippine Star (14 Nov. 2001), Bl-6
Fformat: Erthygl
Iaith:English
Cyhoeddwyd: 2001
Pynciau:
Television broadcasting > Game shows