The Twilight Zone: Season 1-5 Bundle (Blu-ray) for $152.99 shipped.  Alternatively, the DVD version is available for $91.99 shipped.  Here is a screenshot for your reference.  This set contains all 156 episodes from five seasons.  Most places have each of the complete season Blu-ray set for over $50, adding up to over $250 for all 5 seasons.