Harry Potter is like a fine whisky, it gets better with age.
Twilight is like crack, its bad for you and super addictive.
Glee is like ecstasy, its fun at first but you can get a really bad episode every now and then and the comedown is really bad.
Sherlock is like heroin, everyone is itching for their next fix.
Doctor Who is like red wine, mature and has a big history.