Duckman - Season 3 - Eps 5: Sperms of Endearment
Bernice, Duckmans sister-in-law, decides she wants to have a child of her own. After trying the dating scene she decides to give artificial insemination a go. Due to a mis-communication and over abundance of, er, 'product', the service gives her Duckmans 'donation'. Hilarity ensues as Duckman and Bernice are incompatible in every [in] conceivable way.
About Duckman

Title: Duckman
First Air Date: 1994-03-05
Last Air Date: 1997-09-06
Status: Ended
Rating: 7.1/10 (from 67 votes)
Language: EN
Seasons: 5
Total Episodes: 70
Network: USA Network
Genres: Animation, Comedy
Production Companies: Reno & Osborn Productions, Klasky-Csupo, Paramount Television
Synopsis
Together with Cornfed, his portly, porcine partner in crime solving, this defective detective amazingly manages to solve crimes and be a single parent to his hilariously dysfunctional sons at the same time.
Cast

Jason Alexander
Duckman (voice)

Gregg Berger
Cornfed (voice)

Nancy Travis
Bernice (voice)

Dweezil Zappa
Ajax (voice)

Dana Hill
Charles (voice)

E. G. Daily
Mambo (voice)

Pat Musick
Charles (voice)