This illuminating six-part docuseries about concert photography wraps up Season 1 with two back-to-back episodes. First, "On the Wall" examines the transition from viewing music photography as something disposable to a valuable and highly collectible art form. While it's a relatively new industry, it's not unheard-of for some individual prints to sell for six- or even seven-figure sums. Highlights include a section on "Abbey Road," considered the Holy Grail of music photographs. Then, in the finale "On the Net," ponders new standard-bearers for this digital profession.