Here are the images for episode 4. I would like to clarify after looking over the raising of the son of Theophilus. I think I would place The Holy Trinity in Santa Maria Novella between The Tribute Money and The Raising of the Son of Theophilus. This would place it between the gaps of Masaccio working at the Brancacci chapel.
Here is a Prezi I created for one of my classes. It is a brief overview of the early Renaissance. Feel free to ignore the other artists mentioned for now, unless you would like to read ahead. I will over them in greater detail in the upcoming episodes. You will want to skip ahead several slides for the Gates of Paradise. Prezi allows you to zoom in on each panel for greater detail. I am also including images of the Gates as well as the Duomo. Also here is a link to a great article that explains the herringbone brick pattern of the Dome.