NYC Subway - BMT Brighton Line - (Q) and (B) action (R46, R68, R68A) @ Cortelyou rd, Church ave 

Short video of trains around Cortelyou rd and Church ave on the BMT Brighton Line of the NYC Subway. It includes R46, R68, and R68A trains running on this line. This was taken during my trip to NYC on august 2023 (I was staying in Little Haiti, so I rode daily on this line and also on the 2/5 train).
Enjoy :)