The family takes Haley out to a bar to celebrate her 21st birthday, leaving the younger kids to babysit Lily, which turns out to be a mixed blessing for them.
9 p.m., ABC
'Mysteries of Laura'
Laura finds herself trying to find a missing fertility doctor at work while dealing with the possibility that her twin sons are bullies.
8 p.m., NBC
One contestant suffers an ankle injury, thus jeopardizing their ability to stay on the show. Maybe that castaway can create a splint from leftover craft services on set?
8 p.m., CBS
'The Late Show with David Letterman'
Two all around classy ladies stop by tonight: Meryl Streep and Rebel Wilson. If Rebel Wilson shares gossip about "Pitch Perfect 2," we're in.
11:35 p.m., CBS