CBS Renews Zoo, Big Brother

Marisa Roffman
Liane Hentscher /CBS

"The Day of the Beast"-- Coverage of the CBS drama ZOO, scheduled to air on the CBS Television Network. Photo: Liane Hentscher /CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

CBS has renewed Big Brother for two seasons, the network announced.

The Julie Chen-hosted series will air Season 19 in the summer of 2017, while its Season 20 will air in the summer of 2018. (The series will also get a fall run this year exclusively on streaming service CBS All Access.)

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Additionally, CBS announced that its drama, Zoo, will return for a third season. The James Wolk-led series (based on the James Patterson bestseller with the same name) is this summer’s second most-watched original scripted show.