Kenan Thompson urges Nickelodeon to 'investigate more' after 'tough to watch' Quiet on Set doc

'All That' star Kenan Thompson has urged Nickelodeon to "investigate more" following the release of "tough to watch" documentary series 'Quiet On Set: The Dark Side of Kids TV', which has raised allegations of a toxic and dangerous culture on the set of former children's TV producer Dan Schneider's shows.