As a big fan of Japanese television, I have watched more than a historic drama or two. It is a rather Japanese style to introduce historic dramas by showing the films of historic places as they look today along with artifacts and scrolls. Think Ken Burns and The Civil War, if you are American. The other day I presented a map of the Isle of Unknown Fire, which today is called Kyushu and it the southern-most of Japan's four main isles.
The Yamabuki series, which will take the main character into the Gempei War (1180-1185), takes her into encounters with Kiyomori. I came across this 3 minute video about him along with some scenes of Japan. In a style I have grown fond of, the narrator explains the setting and why this is such an important event.
Many of the places are the same as Yamabuki would have visit. For those interested in the actual places, film and narrative might be of interest.