I formally (when I lived in Bangkok) attended many quiz nights and the best format was when they split the nights up regarding quiz topics.

One week they had music/ musical artists quizes, then sports, then general history etc etc. There was always a good turnout and you could basically pick your night according to quiz topic.

Running pictures and video highlights was also popular and the winner/ winners always received a decent prize from behind the bar!

Again good luck with it Noony.