Jerry and Elaine
Kevin and Winnie
Sam and Diane
Angela and Jordan
Liz and Jack
Sherlock and Watson
Joey and Dawson
Logan and Veronica
George Michael and Maeby
Turk and J.D.
Coach and Tami
Stabler and Benson
Amy and Rory
Buffy and Angel
Great additions from the comments section:
Xena and Gabrielle
Jim and Pam
Rachel and Ross
David and Maddie
Roseanne and Dan
Add your own favorite couples in the comments!