Trials of O'Brien (9-18-65 to 5-27-66, CBS). Peter Falk as shrewd defense attorney whose life is a sea of unpaid alimony (to ex-wife Joanna Barnes), gambling losses, and other escapades.  One of our favorites.

Picture Me a Murder/ Alan Alda
Over Defense is Out  9-18-65   first episode
Gaggle of Girls  10-30-65 Tammy Grimes
Greatest Game   2 parts Britt Ekland, Nehmiah Persoff, David Carradine
Bargain Day on Regret Street
Charlie Has All the Luck