The longest running show on this list, Saturday Night Live was built to evolve and change with the times – otherwise, we'd still be watching Dan Akroyd's crooked toy salesman Mr. Mainway try and promote Bag O' Microsoft SmartGlass, while Eddie Murphy treated us to Arcade Fire songs as performed by Buckwheat – but every iteration (like the massively overhauled cast of the upcoming 2013-2014 season) is a lot like playing the lottery: it stands the chance of being incredibly rewarding, but the odds of it approaching the quality of its early years (or even the Hartman, Carvey, Myers and Sandler years) seem very small.
But, just like The Simpsons, the comedy on SNL is largely a reflection of the goings-on in the world at the time (so, if the cast has an off night – or season – then it's largely the world's fault, right?). Honestly, though, the constantly changing cast brings with it the hope of something new, and that's what keeps us tuning in to this long-standing weekend tradition. Unlike other shows that would fall like a house of cards should one element be removed, Saturday Night Live thrives on the unpredictable popularity of characters like Matt Foley, Unfrozen Caveman Lawyer, Stefon and many, many others. Sure, they get overused to the point we don't even understand their appeal any more, but it's worth it just to see an unexpected character become the next thing we're tired of watching.