Marvel Television's Agents of SHIELD might have been the first and longest-running MCU TV spinoff, but the series had many problems over the course of its seven season run. After SHIELD was introduced in the MCU's Phase 1, Marvel Television developed Agents of SHIELD as a means to better explore the peacekeeping and spy agency, with the series originally set within the world of the MCU, following the same continuity as Marvel Studios' feature films. Agents of SHIELD premiered in September 2013, and ran for seven seasons before concluding in an emotional finale in August 2020. Even so, despite its longevity, Agents of SHIELD had its fair share of issues.
