So it took the New Yorker to remind us of a famous party political broadcast, shown 23 years ago, that may prove helpful today. Here's ex-Python John Cleese explaining the inequity of first past the post and the benefits of proportional representation in a 1987 election broadcast.
In the previous election the SDP/Liberal alliance gained a 26 per cent share of the votes which in turn translated into just 23 seats. Or, as he notes:
It took 40,000 voters to elect a Labour MP, only 33,000 to elect a Conservative and it took ten times that number - 340,000 voters - to elect one Social Democrat or Liberal MP.
Source: New Statesman