Take a look at the 150th episode of "Arrow" titled "Emerald Archer", presented in a documentary format, narrated by Kelsey Grammer, and directed by Glen Winter, airing February 4, 2019 on The CW:
"...in the doc 'The Hood and the Rise of Vigilantes', starring 'Oliver Queen' (Stephen Amell), 'Felicity Smoak' (Emily Bett Rickards) and the rest of 'Team Arrow', a camera crew follows as Oliver explains what the 'Green Arrow' means to 'Star City'.
"Oliver must also deal with the return of 'William' (Jack Moore) from boarding school, presenting a new threat to the city..."
Click the images to enlarge and Sneak Peek "Arrow: Emerald Archer"...
