Season 5
Well, bummer.
Today they showed the first episode of season five and while the storyline was fine, I totally miss the old beginning and ending theme song. It's just not the same without the cool "Cheyenne" music. I don't much care for the musical cues for Bronco and Sugarfoot.
I especially miss the theme being sung as part of the end credits. Thank goodness for DVRs and Youtube!