From their facebook page.
https://screen.yahoo.com/community/community-cast-announces-season-6-162500604.html
March 17th on Yahoo!
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The best show in the history of all viewed anything, now with Keanu Reeves, Matthew McConaughey, Meryll Streep, Julia Roberts, Dinosaurs, live unicors and gargoyles, Community has everything.
Community: Age of Yahoo! (Season 6 Trailer)