The comedies will be back for their fourth and second seasons, respectively.

HBO has firmed up its comedy offerings for 2015.

The premium cable network announced Monday that it has renewed half-hours Veep and Silicon Valley for a fourth and second season, respectively.

Rookie entry Silicon Valley launched April 6 following the season premiere of ratings juggernaut Game of Thrones. The Mike Judge comedy about a group of aspiring entrepreneurs opened to 2 million total viewers at 10 p.m. -- HBO's biggest comedy launch since Hung's 2.8 million in 2009.

Like all HBO series, the comedy's ratings story is best told in gross viewers -- when replays, HBO Go and On Demand views are also taken into account.

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For its part, Julia Louis-Dreyfus political satire Veep returned for its third season to nearly 1 million total viewers, on par with its season-two finale. The series, along with Lena Dunham's Girls, is a regular on the awards season circuit, with Dreyfus and co-star Tony Hale both taking home Emmys for their performances last year.

Following its decision to end comedies Family Tree and Hello Ladies (the latter will return for an hourlong special), HBO has been on a comedy roll. Its three most recent rookie series -- Looking, Getting On and Silicon Valley -- have all been renewed for sophomore runs.

Veep and Silicon Valley, which opened to rave reviews, further cement HBO's comedy brand. They complement a slate that also includes previously renewed comedies Girls, Getting On, Looking and upcoming freshman series Togetherness, The Brink, starring Jack Black and Tim Robbins, and Dwayne "The Rock" Johnson vehicle Ballers.