I waited for a price drop and bought what I consider the show's best season for $31.91. Until Season 5, the show's saga had been that Harm was forced out of the cockpit by a night blindness. At the end of Season 4, Harm has laser surgery to correct the problem. The improbability of his return to flying aside, it showed that the character and the series had outgrown their original premises and could now develop more orginically.
The Season 5 DVDs are the first to be presented in widescreen. I don't believe the series ever aired in widescreen. This bonus makes up for the only special feature, a gag reel.