Metacritic was launched in January 2001[4] by Marc Doyle, his sister Julie Doyle Roberts, and a classmate from the University of Southern California law school, Jason Dietz, after two years of developing the site. Rotten Tomatoes was already compiling movie reviews, but Doyle, Roberts and Dietz saw an opportunity to cover a broader range of media. They sold Metacritic to CNET in 2005.[2] CNET and Metacritic were later acquired by the CBS Corporation.[6] In 2020, Metacritic and other CNET titles were bought by Red Ventures.[1]