Movies and animations
The Flash is an American superhero television series. It is based on the DC Comics character Barry Allen / Flash, a costumed superhero crime-fighter with the power to move at superhuman speeds.
In season 4 episode 19 Carlos Valdes as Cisco Ramon appears in T-shirt with impossible triangles on it.
In the 5th season a mobile application Spyn Zone, which reports about incidents in the city, has logo, which represents impossible ring.