Amazon offers Lonesome Dove on Blu-ray Disc for $5. (Target has it for the same price via in-store pickup.) Plus, Prime members receive free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping adds $4.98.) That's at least $4 less than you'd spend at a local retail store.

Update: It's now sold out at Amazon; however, Target still offers it for $5 plus in-store pickup.