This is a project I've wanted to complete for some time. I wanted to make an episode list that tells which episode is on which DVD, and since Kaboom! Entertainment of Canada has released all of season 1 on DVD, I thought what better time than now! So here is the list for seasons 1, 2, and 3 so far. What I did was to put the episode title, followed by the corresponding DVD title the episode can be found on, first the Nickelodeon (U.S.) DVD, then the Kaboom! (Canadian) DVD. In cases where the episode has only been released on Kaboom!, obviously only the Kaboom! DVD title is shown. This represents a lot of time and research on my part, and I still have to tweak a few things (i.e. I haven't CONFIRMED the episode list for the Kaboom! edition of the self-titled PAW Patrol DVD, but I think I have a pretty good idea of it. I will know for sure in a week or so, and if I'm wrong anywhere, I'll fix it). This list is a work in progress, and will continually be updated as new DVDs are released.
Edit: MarshallsiAnjingBomba was kind enough to repost my list as a table, seen below, that looks much better and makes more sense than the list I was posting. So, thank you, and without any futher ado, here is the list! Thank you again, MarshallsiAnjingBomba, for making my list look a heck of a lot better than it did! :)