I didn't watch the show but I can believe them.
I remember watching Endurance (Discovery Kids/NBC).
It lasted 6 years.
The first season the black kids made it to the final four and a black girl was co-winner.
The other seasons...it felt like they were TRYING to get rid of the black kids as fast as they could. Especially season 2 with Scooter.
Although in the final season a black girl won.