NatGeo Wild, Animal Planet, Nickelodeon, and PBS

The streaming services that offer NatGeo include YouTube TV, DIRECTV STREAM, Hulu + Live TV, Sling Blue, and Fubo.
NatGeo has an app but you’ll need to subscribe to a streaming provider to view the shows. 

The streaming services that offer Animal Planet include YouTube TV, Hulu + Live TV, DIRECTV STREAM, and Philo.

Animal Planet has an app, but you’ll need to subscribe to a streaming provider to view the shows. 
The streaming services that offer Nickelodeon include YouTube TV, Hulu + Live TV, DIRECTV STREAM, Philo, Fubo, and Paramount+.
Nickelodeon has an app, but you’ll need to subscribe to a streaming provider to view the shows. 
The streaming services that offer PBS are YouTube TV, Hulu + Live TV, and DIRECTV STREAM.
PBS has an app for viewing shows.