Peacock (paid or ad-supported tier) is your best bet for the complete, uninterrupted long story of Lieutenant Columbo, his raincoat, and his “just one more thing.” Always check JustWatch for real-time updates in your country, because streaming deals shift every few months.
If you prefer to own your copy of "Columbo" or want to experience the series in the best possible quality, you can purchase individual seasons or complete collections on DVD or Blu-ray. Online marketplaces like Amazon, Walmart, and eBay often have a wide range of "Columbo" DVD and Blu-ray sets available. columbo series streaming