The second Mr. Osomatsu anime season premiered in Japan on TV Tokyo and TV Aichi last October, and is also running on the TV Osaka, AT-X, and BS Japan channels.
The first Mr. Osomatsu anime season premiered in October 2015, and Crunchyroll streamed the series as it aired in Japan.
The second cour of the second season for the main Mr. Osomatsu show is slated to premiere this month.
Viz Media acquired the digital streaming, electronic sell-through, home video, and merchandise rights for the Mr. Osomatsu anime, including the second season.