An underwater camera at a Dutch lock lets viewers watch fish and alert authorities when they need help. People love it.

UTRECHT, Netherlands (AP) — The central Dutch city of Utrecht has installed a “ fish doorbell ” on a river lock that lets viewers of an online livestream ... mix of slow TV and ecological ...

UTRECHT, Netherlands (AP) — The central Dutch city of Utrecht has installed a “ fish doorbell ” on a river lock that lets viewers of an online livestream ... mix of slow TV and ecological ...

Undated photo of a bream fish at a river lock in the central Dutch city of Utrecht, Netherlands, where a "fish doorbell" was installed that lets viewers of an online livestream alert authorities ...

UTRECHT, Netherlands (AP) — The central Dutch city of Utrecht has installed a ” fish doorbell ” on a river lock that lets viewers of an online livestream alert authorities to fish being held ...

(Visdeurbel via AP) (Uncredited/AP) UTRECHT, Netherlands — (AP) — The central Dutch city of Utrecht has installed a " fish doorbell" on a river lock that lets viewers of an online livestream ...