ABC has set premiere dates for two new reality series and two debuting dramas as well as given a firm date for the return of the presidential drama “Commander in Chief.” ABC previously announced that “Commander,” which has been declining in the ratings, will be off for the month of March to make room for the new comedy “Sons & Daughters.” But the drama will return to Tuesdays at 9 p.m. (ET) starting April 18.

On Monday, Mar. 6, reality series “Supernanny” returns at 9 p.m. followed by the premiere of medical reality series “Miracle Workers” at 10 p.m., replacing “The Bachelor,” which will have completed its latest run. Getting a “Desperate Housewives” sendoff, the new relationship drama “What About Brian” will premiere in the “Grey’s Anatomy” 10 p.m. time period Sunday, April 2, before moving to its regular time period Monday, April 3, at 10 p.m., replacing “Miracle Workers.”

On Thursday, Mar. 18, the Simon Cowell-produced “American Inventor” debuts with a two-hour premiere at 8 p.m. before settling into its 9 p.m. time period Mar. 23. At 8 p.m. starting on Mar. 23 ABC will run four consecutive weeks of “Extreme Makeover: Home Edition” specials focusing on families impacted by last year’s hurricane season.

To make room for the debuting crime drama “The Evidence” on Wednesdays at 10 p.m., the sci-fi drama “Invasion” will be benched starting Mar. 22, with a return sometime in April.