If you own the Season 3 physical release , you can access roughly 11 short "mini-feature" videos:
A visual gallery that compares scenes from the episode to real historical artifacts and locations related to the 1849 royal visit to Ireland and the assassination attempt on the Queen. Victoria_s03e05
An insider guide where series creator Daisy Goodwin clarifies historical accuracies, such as the concern over Queen Victoria's postpartum health and the reality of the crowds that greeted her in Ireland. If you own the Season 3 physical release
An exploration of the character who plays a central role in this episode's Irish visit. Victoria_s03e05
Features titled "Louisa & Laurie" and segments with actors playing Abigail Turner and Lady Emma Portman. The History of Season 3: Episode by Episode - PBS