Futurama
While The Simpsons was funny Futurama is funny and geeky. It follows the lives of a bunch of misfits in the year 3000. Any science-fiction cliche you care to mention can be seen and is probably made fun of. Take your pick of favourite characters; they all have great moments. There are so many good episodes the only quick recommendation is to watch them all. The very last episode is one of my favourites; a lovely way to bow out.