It's a decent summary of the rise of "trash" talk shows that focused on high emotion and fighting; mostly Jerry Springer. The only things that bothered me was ignoring how much the shows were fabricated and seemingly posing the shows as positive.
Regarding the former: Not that they were scripted or even instructed to fight but a lot of guest testimonials show the stories and situations were fabricated. They'd get them costumes, add characters or parts to the stories that weren't real, and bring on guests that completely made up their stories to be on the show. But the doc makes it seem everything was legit and they were showing "real stories" and giving a spotlight to "real people".
For the latter: I'm not a prude who thinks that the shows were vile and gross. But it's hard to believe these did anything but that promoted the worst in people and lead to the deluge of reality tv we had to deal with for awhile (until the internet gave it a new home). It pandered to the lowest common denominator and that's ok (if it sells it sells), and the doc acknowledges that, but I don't see anything positive from these shows existing or they were warriors of freedom of expression.
Also a bitch sketch they couldn't get Jerry on the doc.