If you want to honor his sons’ wishes you can binge watch him in Babylon 5 online again. It’s now being streamed at: https://www.go90.com/shows/babylon5
Got the entire series on DVD. Along with the TV movies :-) Babylon 5 was my only must-see TV when I was in college.
I was due to begin a new “binge watch” now that I’ve completed all eight seasons of Castle. I have the DVD set from years ago so Monday begins a new binge of B5!