Most premium streaming plans allow you to download content directly to your mobile device or tablet.
Similar to Amazon, you can buy the complete series here. This is a great option if you want to "own" the digital copy without worrying about streaming rights changing. Why You Should Revisit Deadwood Download Deadwood Series
Not all downloads are created equal. When purchasing your digital copy, you will see options. Here is what to choose: Most premium streaming plans allow you to download
The results were a digital minefield.