A selection of Lifetime DVDs is available at the Store: https://www.lifetimetvstore.com/collections/dvds. You can also check with Amazon, Walmart and other online DVD retailers by searching for the title you're looking for in a web search.
If you are not able to locate the title you're looking for in one of the stores mentioned above or in the Lifetime Store, it's likely that it is not available on DVD. You can sign up for future updates from the Lifetime Store in the footer of the website at https://historystore.com.
Select digital programming is also available for purchase at major digital retailers including Amazon, iTunes, XBOX, VUDU, Google Play, Verizon, Comcast, Frontier, FandangoNOW, Sony Playstation, Hoopla and Overdrive.