After opening this season very strong in comedies, CBS has followed up its high ratings by boosting The Millers, The Crazy Ones and Mom with "back nine" orders, bringing them all to complete 22-episode seasons.

Will Arnett-fronted The Millers currently follows top comedy The Big Bang Theory on Thursdays at 12.4 million viewers. The Crazy Ones, starring Robin Williams, earns 13.7 million viewers on Thursdays, while Anna Faris and Allison Janney's Mom attracts 8 million viewers on Mondays.

The trio are currently the top-rated three new comedies of the season, making CBS's call to up their seasons a very easy decision.