Primetime Preview: In the Motherhood Premieres

ABC tries to compete with NBC's block of comedies tonight. The former network airs one new comedy, while returning another from a long hiatus...

• 8:00 p.m. - The series premiere of In the Motherhood (ABC); The American Idol results show (Fox); Zatanna comes to town on Smallville (CW).
• 8:30 p.m. - Finally. Samantha Who? returns (ABC).
• 9:00 p.m. - Please, let Izzie die on Grey's Anatomy (ABC); It's Pam versus the copier on The Office (NBC); Sam and Dean investigate suicides on Supernatural (The CW).
• 9:30 p.m. - Jack is turning 50 on 30 Rock (NBC).
• 10:00 p.m. - Tom Arnold guest stars on ER (NBC).