Oh my thank you for this thread and my answer is a big yes they should (media) supply an equal platform for other political parties. I went looking at the last several presidential elections and the last time a non republican or democrat was even close to being in the running come election day was 1992 and that man was Ross Perot. Here we are 20 years later and we have a butter vs jam, mustard vs ketchup kind of election process going on. Why is it when it comes time for debates a good chunk of Americans haven't heard of Gary Johnson of the Libertarian Pary, Jill Stein of the Green Party or Virgil Goode of the Constitution Party. Are they somehow lesser politics because they aren't red or blue? Are they not capable and willing candidates who have great ideas for the country?
The worst thing is don't foresee this ever changing because the we continue voting in these candidates from the two prime parties. Not enough support for these other candidate because the media doesn't give them the attention they give to the big two. Its a shame no doubt and i hope for the day that this isn't the case but i wont hold my breath.