Once Upon a Time
2011–2018 · Ended
7 seasons · 156 episodes
≈ 122h 12m Estimated · Low confidence View runtimeTV Shows Starting With O
Browse series beginning with O and compare how much time they take to watch. Select any show to see its detailed runtime, progress calculator and release information.
Catalog results
7 shows 
Once Upon a Time in Wonderland
2013–2014 · Ended
1 seasons · 13 episodes
≈ 10h 11m Estimated · Low confidence View runtime
One Piece
Year unknown · Running
1,178 available episodes
≈ 451h 56m Estimated · Low confidence Next episode in 3 days View planner
One Piece
Year unknown · Running
16 available episodes
15h 33m Published runtime View planner
Orange Is the New Black
2013–2019 · Ended
7 seasons · 91 episodes
91h 26m Published runtime View runtime
Orphan Black
2013–2017 · Ended
5 seasons · 50 episodes
≈ 39h 10m Estimated · Low confidence View runtime
Outlander
2014–2026 · Ended
8 seasons · 101 episodes
≈ 80h 24m Estimated · Low confidence View runtime