Just asked: How do I use the PLR that I buy?
Now there is a really good question that is always difficult to answer as it really depends on what type of PLR you buy. Here I share a video from Sue Fleckenstein which will give you a good starting point. The offer at the end is no longer available, but this is good free knowledge for you.
Here is another way to use PLR content and get it really unique – if that is what you want to do. The PLR you buy should be good enough to use as is with an added intro and ending to set it apart, but this shows a whole way to transform what you get.