I love the smell of season premieres in the evening!  The 2012-2013 television season is finally upon us, but fret not, there are still more spoilers to spill.  I’m honing in on the geektastic “The Big Bang Theory” as my last show to spoil.  Last season, Leonard (Johnny Galecki) proposed to Penny mid-coitus while Howard and Bernadette got married mere hours before “Froot Loops” was launched into the space.  The show premieres on Sept. 27 at 8 p.m. EST, so here are five spoilers you need to know…