Preparing for pub quizzes - Movie, music and pop culture?

Hello,

Just recently I've taken up an interest in quizzing. I went to a pub quiz today, and the same one last week. I've been preparing a lot for these: I've been learning flags, capitals, monarchs, rivers, mountains etc. and whilst this has gotten me the odd question or two, what really seems to come up a lot is actors, TV shows, movies, music, celebrities and general pop culture. I don't watch a lot of TV or movies so I really don't know where to begin learning all these shows and faces that would get me the most amount of correct questions. Is there any way to train this effectively? Preferably without spending my days in front of the TV.

Thanks!