Watching television was much more toxic than digital media. Network television spoon fed content targeted at a lowest common denominator to everyone, that content was consumed passively. It was horrible.
Digital media allows active selection of content, and provides access to much higher quality information, if you want it.
Back in the day, you were lucky if your public library had even one book on a subject you were interested in, and if it did, it was probably mediocre at best. And highschool libaries? Pfft. Brittanica? Pathetic compared to Wikipedia.
Today, kids have instant access to all of human knowledge as digital media.
It's a false equivalency to compare TV time to digital media time.